Get in line

I thought I'd heard them all but how about this for hutzpah - during a lesson about shopping, my English student was telling me about how he does the weekly shopping at the supermarket. First of all he places his two young children (7 and 9, I think) in the queue at the cashier and then goes around filling his trolley. After 20 minutes or so he returns to the queue, stepping in front of the shoppers who have joined the queue, to join his kids. When confronted by a torrent of abuse, he simply shrugs and tells them to bring their kids and use them in a similar fashion...

I'm not sure exactly what my response would be if that was me in the queue behind those kids, but I can guarantee a few choice expletives...