Not gonna lie, trying on helmets just to go & buy them online would probably irk me more than anything else if I worked at a bike shop. Hair has a tendency to hold more grease, grime, & dirt than any other exposed part of the body.
I could go on for days about similar activity from working in general retail for ~2 years now. Once you get past all the flowers & rainbows & optimism, most people are just bastard-coated bastards with bastard filling.