In general, 59 percent of people have taught a class at some point. But among people who have ridden in an emergency vehicle, 71 percent have taught a class.

Based on a survey of 301 people who have ridden in an emergency vehicle and 720 people in general.

In general, 25 percent of people can play the piano. But among people who can play a stringed instrument, 38 percent can also play piano.

Based on a survey of 197 people who can play a stringed instrument and 631 people in general.

In general, 53 percent of people have smoked marijuana. But among those who don't like sushi, only 32 percent have smoked marijuana.

Based on a survey of 192 people who don't like sushi and 704 people in general.

In general, 52 percent of people have donated blood. But among people who prefer kickball to dodgeball, 65 percent have donated blood.

Based on a survey of 356 people who prefer kickball to dodgeball and 603 people in general.

69 percent of people who have business cards have gotten a speeding ticket, compared with 53 percent of people in general.

Based on a survey of 298 people who have business cards and 743 people in general.

56 percent of people who know how to make origami prefer cold weather to hot, compared with 41 percent of people in general.

Based on a survey of 272 people who know how to make origami and 758 people in general.

63 percent of people who have a TV in their bedroom also have a landline phone, compared with 48 percent of people in general.

Based on a survey of 337 people who have a TV in their bedroom and 848 people in general.

In general, 62 percent of people wear glasses or contacts. But among people who have written a fan letter to a celebrity, 78 percent wear glasses or contacts.

Based on a survey of 215 people who have written a fan letter to a celebrity and 1193 people in general.

90 percent of people who prefer to use a search engine other than Google describe themselves as introverts, compared with 68 percent of people in general.

Based on a survey of 53 people whose preferred search engine is not Google and 1556 people in general.

54 percent of people who have been on a cruise are afraid of heights, compared with 41 percent of people in general.

Based on a survey of 334 people who have been on a cruise and 1321 people in general.

In general, 44 percent of people have dyed their hair at some time. But among people who have tried to raise Sea-Monkeys, 63 percent have dyed their hair.

Based on a survey of 326 people who have tried to raise Sea-Monkeys and 1174 people in general.

58 percent of Weird Al Yankovic fans have been involved in scouting, compared with 45 percent of people in general.

Based on a survey of 305 Weird Al Yankovic fans and 547 people in general.

61 percent of people who filter their tap water prefer credit cards over debit cards, compared with 43 percent of people in general.

Based on a survey of 125 people who filter their tap water and 577 people in general.

75 percent of people who have cheated on someone have also smoked marijuana. In general, only 51 percent of people have smoked marijuana.

Based on a survey of 161 people who have cheated on someone and 525 people in general.

In general, 71 percent of people describe themselves as bad dancers. But among people who have never taught a class, 87 percent say they're bad dancers.

Based on a survey of 190 people who have never taught a class and 499 people in general.

33 percent of people who say they're absent-minded have worn braces, compared with 47 percent of people in general.

Based on a survey of 191 absent-minded people and 454 people in general.

33 percent of people who are double-jointed have testified in court, compared with 14 percent of people in general.

Based on a survey of 107 people who are double-jointed and 570 people in general.

65 percent of people who prefer lemons over limes are fiction lovers, compared with 50 percent of people in general.

Based on a survey of 280 people who prefer lemons over limes and 553 people in general.

54 percent of atheists think people on a date should split the costs, compared with 29 percent of people in general.

Based on a survey of 155 atheists and 524 people in general.

In general, 62 percent of people like spicy food. But among those who think flag burning should be illegal, 78 percent like spicy food.

Based on a survey of 103 people who think flag burning should be illegal and 534 people in general.