Gardening

My dad always had a terrible time with deer eating the shrubbery, and he was hoping he could get a family of mountain lions to move in. This never happened, fortunately. I actually heard of people going to the zoo to get big cat poop to spread around their gardens (supposedly the deer would smell the scent of predators and keep away). But it seems to me that then your garden would smell like a giant litter box.

You can buy some systemic products that make plants taste bad. There's one called Repellex: http://repellex.com/catalogsearch/result/index/?cat=9&limit=25&mode=list&q=systemic I've never used it myself but I've heard it works.