[kmnns]

> Holding up the queue, eh?

Hardly. Just have your coins ready at the cashier. Often you can do the math yourself and present the money immediately and in the correct amount. On some glorious and surprisingly frequent days, you can empty your coin pouch in one swoop. It’s a nice little game.

Anyway, nobody is obliged to sacrifice their privacy because someone in the queue can’t manage their time properly.