Have two of DD's friends over this afternoon, their Mum is working tonight so I have done them tea, they asked for sausages chips and beans which I provided (early tea as they are being picked up soon). One got down from the table without asking, the other is still there but neither ate their (good quality) sausages. They cost me 3 quid, I am a bit cross. I have asked them to come back to the table and eat their sausages (I won't insist they eat all of them, I just want a token effort). They looked at me like I was some sort of harridan. AIBU??