As a kid I HATED eating off cutlery that wasn't ours, I can't quite describe it but it was like it was wrong/dirty. Obviously being a people pleaser I never actually said this to any adults but I'd be very careful not to touch the cutlery with my mouth, just the food. I had a 'special spoon' which was mine and always used it. I also hated washing my teeth when we were away from home, as I didn't like the idea of the strange water. Nothing to do with the taste per se - just the feel/thought of it.
I trained myself out of both things as I grew up but given the option eg at work there are still certain cutlery utensils that make me feel a bit icky and I avoid them (forks that are too heavy or too light, spoons that are too big...).
I've only really thought of this recently and wondered if it's something others experience(d)?