Bad Idea Exploits

Warning: The following ideas are very bad.

Exploiting Idea 1: 'Make all the lights in the house change to bright pink'
Exploiting Idea 2: 'Replace all the cat videos on YouTube with cat playing the trombone'
Exploiting Idea 3: 'Create an AI that writes an endless loop of "The Wheels on the Bus" in every language known to man'
Exploiting Idea 4: 'Make every website use Comic Sans for all font styles'

Caution: Do not try this at home.

Or do. We won't judge.

Also see Actual Exploit Techniques for more not-so-bad ideas.