I have two tattoos and it would be a cold day in h*ll before I would allow that to be done to my animals. What a stupid moron. This is wrong on so many levels.
Rosehips and cookies from StaceyWolf are the only treats I give my girls. I have no plans of adding anything else into their diet. They eat plenty of hay and Oxbow pellets.
Sometimes I will toss a willow ball into the cage as a treat. They don't last more than an hour and leave a big mess...
What are you using to clean the shelf? Try cleaning it with vinegar and standing down that spot. That is what I did with my shelf peeing chin and she eventually stopped. It was not an immediate fix, but it did work for me.