Don't zip my bag

I don't like having my wheelchair bag zipped. It is hard for me to unzip.

The most valuable thing in there is a bottle of Advil, so why close it?

This does not stop people from trying to close it -- on elevators, in my office, anywhere.

I tell them not to worry about it. Often doesn't work.

I don't mind people who ask. But it is odd that people assume I need something, but apparently can't ask.