Sex swag: It happens. Apparently, it happens a lot more often than you might think. According to a survey conducted by MTV UK in 2012, one-third of respondents said they had a "sex trophy." Some stole them as evidence of their conquest, while others slunk off with things during a bad breakup. Sad. Especially when you end up without a favorite sweatshirt or pair of jeans, the two most common sex trophies. Also sad: The fact that MTV had a show called "I Just Want My Pants Back" and then canceled it. Check out some of the sex trophies people reported keeping. Casual clothing we get - but a cheese knife? Really?