According to the Daily Mail YouTube Channel
"The two women were captured on CCTV at The Peacock in Sunderland placing a strand of hair on a pizza. Staff apologised and gave the women a refund on the £7 lunch as well as a round of drinks. However staff became suspicious when they realised the hair didn't match anyone working at the pub. Video footage shows the two women sitting on a sofa before one of them plucks a strand of hair from her head and places it on the pizza. Her pal then moves the hair around on the food and delicately tucks it under the toppings before appearing to bite it in half and put it back on the pizza slice."