Step 1 Go to someones house while they are asleep and kill the house' s power.
Step 2 Dress in realistic werewolf costume.
Step 3 Acquire 30 ounce tank of sulfur hexa flouride and conceal it in costume.
Step 4 Attach an outlet tube from tank leading into werewolf's mouth
Step 5 Breathe in the dense gas and your voice is rendered semi demonic.
Step 6 Stand in bedroom corner and whisper sleeper's name until conscious.
Step 7 They will wake up to the most sinister voice they've ever heard.
Step 8 Film reaction of this individual and others after inhaling SHF gas.
Step 9 Mythbusters introduced the gas to the world. I simply gave it a purpose.