Warning signs of insanity

Your friends tell you that you have been acting strange lately, and then you hit them several times with a sledgehammer.

You start out each morning with a 30 minute jog around your bathroom.

You begin to stop and consider all the blades of grass you've stepped on as a child, and worry that their descendants are going to one day seek revenge.

You try to make a list of the warning signs of insanity.