My mare is really jumpy when you pull her mane!
Im super gentle and don't even tug, I just apply pressure and it falls out, but still, she FREAKS !
She's not sensitive to you touching it or pulling on it unless you have a mane comb in your hand and she's not scared of the mane comb - you can move it anywhere on her body with no problems.
I recently cut her tail which she was not impressed with (she very expressive with her tail) - do you think she knows im shortening her mane too !??