what is the posobility of this? not the cats i dont have any.

 

its happened to me....at first i thought some punk shoved something up there...then i took a clothes hanger....poked it a few times....then asked my friend to revv it up to 6k..and all i saw was ***** of steel wool flying out the back....interesting sight if u ask me....but yeah..it can happen...dont know why exactly..but it happenes....after the crap flew out..its been 4+ month clog free...