You're a fucking shit for thinking this is funny, and that guy is a fucking arsehole twat for thinking it's funny to tell you this, and also fuck the douche who said "retards and bannana"
No-one knows the future, what if your child is disabled or has stunted brain development? You'd think it's funny then you little shit??? Nothing is sadder than seeing an old man or woman looking after their 30 year old child, still loving them in full, but never having a moments peace or seeing their child grow up, have grandkids, get married, have a beer with them- these poor children who are made to feel worthless by fuckshits like you and their poor parents who are constant carers. Sometimes people with disabilities live for an average lifetime, their parents die and have no carer or someone who will love them as they are. Still think it's funny you fucking shit??? I have nothing but respect for kids, adults, teenagers who live day to day with handicaps, whether it be physical or mental, and keep going and are mostly great people, and their parents, carers, teachers who let them fullfill their potential or their passions. I see a guy on the tram sometimes, 30 something year old with his mother who just loves pressing the open door button and it makes his mother happy seeing him happy. and you know what? Doesn't bother me or anyone, and I respect both for getting through life. You can fuck off you 11 year old full tilts walish fuckbag, you make me sick and so do those two guys with you for finding this remotely funny, especially the "bus driver" and being highly inappropriate and offensive, and I hope they fucking get a kick up the arse, a fucking wake up call that they are incredibly bigoted and disgraceful excuses for humans, and you with them are scum of the earth. To think that you find the suffering and birth defects of others "funni xd chairlefts" makes me actually sick to my stomach
tl;dr : you shit.
/rant