Help me prank my brother?

Your brother has his own car? Make the car keys disappear, when he is about to go on a date (or any other important time) and make a call to his girlfriend, saying something about he being in the hospital and make her appear at one - But this might lead back to you..or just keep the 'call-part' out and get amused over him not being able to find the keys for more than one day. Then just put the car keys on the floor in the kitchen. I hope your mom will find it. They'll never find out who the culprit ever was^^b