Just a few of the interesting things I thought of not to do while wearing a mask.
Do not rob a bank while wearing a mask! Touching money can still give you the virus.
Do not sing while wearing a mask! The words will come back and hit you in the mouth.
Do not jump out of an airplane while wearing a mask! The mask is not a parachute.
Do not lay down in the path of an elephant while wearing a mask! The elephant's footprint would not look pretty on your mask.
Do not ride a horse backwards while wearing a mask! The horse could swat you with its tail and knock the mask off.
Another one -- If you walk into a bank or store and see it is being robbed, take off your mask immediately.