Bostonian Roulette

The act of entering a rotary intersection, gambling that you will...

A. get out at the correct exit

B. get out within the first revolution.

C. be able to get out at all

D. get out alive

Variation on 'Russian Roulette', only losing usually doesn't kill you, but often makes you wish you were dead.

So named for the proponderance of such traffic circles in Eastern Mass. and the notorious driving habits of Bostonians