Apparently plants hate being touched, it stunts their growth.

I still remember the episode of mythbusters that showed they liked heavy metal music:#

I'm scared to touch mine because i leave fingerprints/marks. They have kind of like a white powder that protects them from the sun

I think you've done enough

My philodendron must hate me when the seasons change. I amputate the vines while sadistically grinning. I do this out of love!

Is it okay to hug trees?

Hate ? Plants ?
Plants can't feel hate.

Threaten them by eating spinach and salad while standing next to them.

Some are more touchy than others.

Never touch an African Violet. You can kill it.