I just destroyed a GE Superdex 200 16/60 column. I was repacking it, somehow over-tighten that thing, and the glass tube end cracked (and eventually broke).
On the better side of it, the replacement glass tube is "only" $189 and I don't have to rebuy the whole $2000 column, but I lost about 15% of resin (so total is ~$400)and I feel very horribly horrible because the whole point of the mistake is that I feel that I was being careless. I was lacking knowledge that the glass is very fragile, that it shouldn't be overtigthen (the manual said it), but somehow I gave it too much power and overtighten it. Holy shit I even had a gut feeling not to do it, but I still did it and it cracked

If I could, I'm going to pay for both the glass tube and resin out of my own pocket, since this is 100% my fault, but would it be proper to tell my supervisor that I would pay?