I haven't had any of these in a while - but I find that claiming to have been decapitated in a car crash generates a lot of excitement on the other end of the call...

Bonus points if you can last longer than my record of two minutes before laughing so hard that you have to hang up. Extra bonus points if, as once happened, they ring back to find out why you hung up (and you laugh a lot more).
(Nicklock, Mon 23 May 2011, 16:05, 1 reply)

best one ever
"yes, i've had an accident! i've just tripped over a loose carpet track, running to answer the phone to you! aaarrg, i think i've broken my leg! i'm going to sue you!"
*hangs up*
*phone rings*
"are you ok?"
*laughing fit*
( Smash Monkey lowering the tone of the whole internet, Mon 23 May 2011, 16:11, closed)