Treated my Physics teacher who told my mom! I would fail my 12th board exam

I work 9-6 in emergency of a local hospital as the shift was getting over around 5:50pm i see this man coming in and i am thinking i know him but who is this ? Then i got it its the same guy who told my mom i would fail! He had pain abdomen gave symptomatic treatment and advised him to get a usg! And he was trying very hard to remember me and after the consultation he asked me my name i told him just the name dr xyz not the surname bcz he would have recognised me and then i would have to refund his fees and he would have asked for a discount on usg !
Came home told my parents about it and had a good laugh!