Female customers got a shock when they discovered the man and woman grunting and groaning on the floor of the toilets at teatime, when the fast food chain was packed with kids, the Mirror reported.
The pair was caught and frogmarched off the premises by security guards.
One mum, who was in the fast food store at the time, told the manager, who called security guards, that the duo should be disgusted with themselves, doing it in the kids restaurant.
The 42-year-old was with her son, 10, and daughter, 22, when the smartly-dressed couple in their late 30s popped into the restaurant in The Galleria centre, Hatfield, Herts.
After they went into the ladies, people started coming out looking horrified.
The outraged woman said her daughter then went herself and told her that they were at it on the floor and all you could hear was the man groaning and grunting away.
--ANI (Posted on 28-03-2013)