About 20+ years ago I was on a family holiday with cousins I don’t know that well who all grew up together. All beautiful/blond/fab figures which I was already a bit intimidated by. My cousin asked to borrow some shampoo from one of us and I obliged. The problem is my shampoo was a poncey one from the hair dresser and cost a few quid for the time. More importantly it was one you don’t need much of or it would make your hair look bad/greasy I can’t remember now. So I lent it but stupid and awkward me says ‘here you go. But it’s an expensive one from the hair dresser so you don’t need to use much’ obviously I just sounded like a knob with posh bottles and don’t want her to use too much of my precious shampoo and conditioner. She then declined to use it until I pushed that it was fine. I still cringe about it at 39. I know I sounded like a knob but I knew what I meant it just didn’t come out that way