I think all people who wear prescription glasses would agree. We hate it when other people ask to try on our glasses. We hate those few times when we cave in and let them try them on. We hate the inevitable reaction of 'Whoa!' or 'Holy shit, these are strong!'. We hate our apologetic feelings of inadequacy that accompany such outbursts; the implied superiority inherent in the 'Whoa'; the squinting fish-out-of-water feeling we have during those brief unfocused moments.
Or maybe it's just me.