I prefer to checkout on lanes attended by middle aged women, and if there's a male present, that lane is put on priority.
I find the sexual tension and awkwardness that follows kinda upsetting, since I'm primarily at the grocery store to get fucking groceries, not to please the gaping hole of insecurities clearly displayed by teenage vagina.
I had teenage cashiers initiate me with all sorts of stupid ice breakers, eg.
"how's my hair"? (She was below average, and i couldn't care less what her fucking hair looked like)
"Someone's eating healthy" (After she finished moving her lips, she seductively smiled at me with her fat face, gross)
"Nice wallet!" (Yes, my wallet looks nice, but it's not very heavy 'wink wink')
Also, there's always that one creepy middle aged lady that's hitting on you hard, but they're beyond disgusting akin to a toilet bowl filled with festering shit, urine and cigarette buds.