TheAztec. It could have been worse if other flatmate had cut his hand on the tumbler, but all depends on the flat mate. If you selected well then you probably get on well with them and they’ll see I has been the other flat mate’s fault and not yours. However, it will still be possible for them to sue you / push for compensation. I didn’t have them signing anything in contract to exonerate myself of responsibility.

Getting on well with flat mates is key. They are likely to help you get rid of the new tenant if things aren’t working out.