Social Bathrooms

So my freshman year of college I lived in a hall where we had social bathrooms.  I wake up one saturday morning having to take a terrible shit.  So I head down to the bathroom and take my usual stall.  About two minutes into my session some kid comes in and gets in the stall next to me.  After a few seconds I hear him grunt and just the loudest stereotypical fart noise I have ever heard (the same kind you get when you put your hand in your armpit only like 7 seconds long).  Immediately afterwards there is complete silence, then both of us just laugh uncontrollably for a good minute.