Mister Crocodile

Never smile at a crocodile!
No you can't get friendly with a crocodile;
Don't be taken in by his cheeky grin;
He's imagining how well you'd fit within his skin!
Never smile at a crocodile!
Never dip your hat and stop to talk awhile;
Never run, walk away, say goodnight, not good day
Clear the aisle but never smile at
Mister Crocodile