You're nothing but a joke.
Vitreous humour.
Because they can't spell toboggan (This joke brought to you by a 90 yr old polish man I take care of at a nursing home)
I think it's because usually the punchline is too long
THE PUNCHLINE OF THIS JOKE HAS BEEN CENSORED BY THE GOVERNMENT OF THE PEOPLES REPUBLIC OF CHINA, PLEASE REMAIN CALM WHILE WE WILL DEAL WITH THE OP IN A CIVIL MANNER.
I think this is a set up!
He was afraid the ring would give him away.