"Bad attitude "

I took my elderly parents to see a gp following my father's mini Stroke my mother explained that they wanted to check if the new medication that my father had been put on was going to be put in his monthly repeat script, the GP spoke quite rude to my mother saying "what do you want from today" then he went on to go through my father's medication asking if and why he took them and when my father spoke he told him to shh as he was looking at the computer and typing I think the GP was totally unprofessional and I wouldn't like to think that an eldery/vulnerable person was seeing him on there own we have been patients of the practice for some years and never had any issue before