colon training
When you have to take a crap but you're busy with things that aren't totally important (facebook, music, texting while laying on your bed, tv) because you're planning that one day you'll be in a situation where you know you'll have to hold it. You don't want your body to get used to just dumping whenever it wants.
i was laying on be bed, watching tv and facebook chatting with my girlfriend... then it hit me, i had to crap. But i was so comfortable... so i started to think of school how its weird to dump there so i did my Colon Training to get my body used to holding it. It payed off the very next day