Funny Story

It was a nice family evening yesterday..everyone was home, sipping their drinks and mom started off with some really funny anecdotes about hilarious answer sheets. There was this one time in some economics numerical, her student wrote the most hilarious statement known to man. Apparently he might have been cheating from the guy in front. An intermediate step in the numerical involved calculating factorial of 3, the result of which was used subsequently in the next step. Anyways but the guy who was solving it, wrote 31 = 6 instead of 3! = 6 i.e. he forgot to write the "." in the factorial sign. Hence the guy who was copying it wrote 31 = 6 and suddenly started wondering..how the hell can 31 be equal to 6??!! And obviously the guy who solved the problem did not see a reason to explain why 3! (remember..without the ".") is 6. Hence, he did not write anything. The guy who was copying it, thought..he should supplement this step with some explanation and hence wrote

31 = 6 (Because, sometimes 31 = 6)

Damn! I wanna be a teacher!