Three in a row, in 30 minutes.
Victim: my sister
Her tire was flat and I offered to change it. While I was jacking it up I suggested her to go to a garage
to have the wheel checked just in case I did something wrong. As I don't have a driver's license I told her
I am not licensed to replace tyres, so she would be in trouble if the wheel somewhat failed. (strike 1)
While lowering the car I recommended her to move away from the firing range just in case a bolt was shot
at high speed due to the weight of the car. (strike 2).
After finishing the job, while heading back home, I told her I remembered that she should try and start the engine.
As she was aware I had pulled two pranks already she was wary. So I explained there is an effect called "engine vertigo"
that might happen when the car has been tilted for several minutes. There she went and started the engine that, obviously,
worked (strike 3).
The funny thing is, she fell for them three times in a row. And being my sister you can imagine she knows me very very well

Another one, this one was 35 years ago! I was the lighting and sound technician for a theatre company. We had an opening on Sunday and I
told the director I was going mountaineering on Saturday. On Sunday some of the crew went to a radio station to be interviewed about
the opening and meanwhile, to the astonishment of the radio guys, I was bandaging my hands. So, I appeared at the theatre with both
hands bandaged. I told him I had an accident, it wasn't serious but my hands were out of order. So, he had to sit at the lighting and sound
control waiting for my instructions.
The play begun and I poked him in the shoulder, and I showed him how I was removing the bandages. He almost killed me, although at the
same time he felt an immense relief! The funniest thing is, several months ago he overheard me telling an actress that I was intending to
pull that prank the opening day. But he forgot!
