try to run as fast as you can with out stoping and see who will last the longest. another one will be running on the tread mill and getting hit by object like water ballons or ping ball gun and see who will make it.
unscrew the bolts of some ones car,bike,motocycle like the tires or something that will stop it from moving when they start to move.
Want to master Microsoft Excel and take your work-from-home job prospects to the next level? Jump-start your career with our Premium A-to-Z Microsoft Excel Training Bundle from the new Gadget Hacks Shop and get lifetime access to more than 40 hours of Basic to Advanced instruction on functions, formula, tools, and more.