Likes Bikes and Dirt
The look is probably far worse than the crime. Sounds like said person was potentially not a front of house server, and instead could've been someone out the back doing to dishes or the like where there's no need to be particularly proud about your appearance. Also how do you know this person wasn't just making a drink for themselves? If I was a dish pig, I'd be stripping of my gloves to make myself a cuppa, as doing it with them on is going to result in an interesting tasting cup of tea at the least. Lastly as Poodle has pointed out, gloves don't automatically equal hygiene.