and, on the lighter side, here's what an "irregular noun" (with exceptions) looks like..

ągoose
Function: noun
Inflected Form(s): plural geese; see senses 4 and 5
.
.
4 plural gooses : a tailor's smoothing iron with a gooseneck handle
5 plural gooses : an instance of goosing ; specifically : a poke between buttocks
cool