Sign up to viewAnd once you’ve found hit the hilarity on the head why not keep the gag going and create a series of similar advertisements or a progression or timeline. However, be aware that the best thing about a running joke is it knows when to stop running.
If these two meet it could spell (or perhaps smell) disaster. Clearex(opens in a new tab or window)’s clever series of ads set up different situations in which a collision would mean explosion. Better to use the cream and avoid potential catastrophe.