The thank you letter which Caroline Playle posted on Facebook. See SWNS story SWTHANKS; A grateful mum's 'thank you' to a caring shop assistant who calmed down her disabled young son who threw a tantrum in a TK Maxx store has become a viral hit. Tired Seb Playle, aged seven, who has Down's Syndrome, decided he had enough of traipsing around the shops and sat down at the top of some stairs. Mum Caroline pretended to leave him while still keeping him in view but Seb - who featured in a Marks and Spencer TV ad - stubbornly refused to budge and follow her. Assistant Ashley Rogers spotted the stand-off and sat next to the youngster and began chatting to him.