...you honestly don't mind how long it takes the postal clerk to type into the computer all the details now required on customs forms. You've packed 20 cereal bars, 10 envelopes, a drill bit set, a loofa, a packet of pens, playing cards, gummi fruities, gum, mints, beef jerky, and a partridge in a pear tree.
You also don't make eye contact with any of the twelve people in line behind you. You just keep imagining the happy faces in uniform across the Pond.