But a triangular-shaped sandwich is an efficient sandwich shape to eat without making a mess: you're biting "off", not biting "into" (thus not getting egg salad

But a triangular-shaped sandwich is an efficient sandwich shape to eat without making a mess: you're biting "off", not biting "into" (thus not getting egg salad all over your face). And what do you get when you've bitten off all three points? Another triangle! It's a beautiful day, I think I'll go outside and get some fresh air now :)