The following steps are what lead to the explosion.
1.Go to Taco Bell and order a grilled stuffed burrito.
2.Leave Taco Bell full and feeling rather shitty.
3.Get home and start to feeling the rumbling stomach the represents the earthquake before the volcano.
4.Run to the bathroom desperately clinching you buttcheeks together.
5.Get to toilet sit down.
6.EXPLODE SHIT all over your toilet bowl, ass cheeks, and nut sack.
7.Wipe your ass extra well, and possibly follow with a shower.