Hair Cuts at Great Clips (or where ever) do you tip?

I tip $5. I figure if they're making min wage then they should get some kind of supplemental income because cutting hair is a lot tougher than stocking shelves or working the drive through at mcdonalds.

I'd rather not have to tip for my haircut or food service but owners know they only have to flip for half their employees wages while the customers do the rest. That way they can take home more money. Pisses me off.