How to put a condom on.

Apparently it isn't as common knowledge as I thought. I gave a finger condom to a 20yo coworker to put over a bandaid. He unravelled it and tried slipping it over the bandaid lol. I was shocked. I explained and showed "pinch the tip, roll to the base". Now he's gonna think of me every time he puts a condom on lol I don't get paid enough for this shit lol but it's the best financial advice I can give.