After waiting for 15 minutes in line it's finally my turn. The lady behind the counter looks like she'd rather run naked through city while on fire, than to help me, weighs my mail, attaches the correct stamps and throws the envelops in a basket on the floor.
With my biggest smile I say in a cheerful voice: "Thanks, have a nice day"
She, without looking at me and without moving a muscle in her face, says: "Yeah"