I Have a Question

How do i tell my friend id rather not sit with her at the senior center all the time especially since lately she keeps sitting next to someone id rather not sit with.

the person she sits with all the time is in a scooter, but unfortunately she does not know how to drive it. back in jan she drove it over my foot and left it swollen for months. she apologized but at the same time claimed she didnt have enough rm to get by, not sure what kind of apology that was.

my friend has somehow taken a liking to her, the thing is shes always saving me a seat which is nice but always seems to pick the same table this person is at. last wk she literally drove her scooter right into the table and almost tipped it over while we were all sitting there. today she did the same thing only not as bad, i feel like im being rude if i tell her id rather sit elsewhere but i dont want to sit next to someone that dont drive their scooter properly and i always feel like im in harms way. i cant even get a drink or nothing if shes driving that thing around, i get out of her way till shes done and then get my drink or salad or whatever. sometimes ive wondered if she does this on purpose. i dont want to sit with this person constantly cause she dont know how to drive the thing so im trying to keep my distance so i dont get hurt again. so how do i tell her its nothing personal but i need to keep my distance. any suggestions?