To have given DP their own key for the bike lock?

[theverysuccessfulone]

The day we moved house I brought our 2 bikes and locked them on the building railing. I used both locks to lock the bikes together, so we need to open the two locks in order to use any of the bikes (one locks both frames to the railing, the other locks both wheels to the railing) . I then have my dp their key, and kept mine. One year later (I know...) my dp lost the key and claims i should have kept both keys! AIBU to think DP should have been more responsible with their key?

No one? :(

Logically you should have had 2 keys each so if one of you lost your keys then the other one would still be able to unlock the bikes.

However, it seems like he is trying to shift the blame from himself. "If you hadnt given me the key then I wouldnt have lost it" has got to be the stupidest defence ever. I had a similar argument with H once, cant remember what he had lost but he basically said that same thing and I asked him if he really was so useless he couldnt be trusted with anything in case he lost it? He tied himself in knots trying to get out of that one!

And my exH once.....we were going to a concert, I took the tickets out of the file and gave them ex, I was on my hands and knees at the time as we kept the box file at the back of the cupboard. We leave, get to the venue (thankfully only 20 minutes away) and he asks me for the tickets. He had taken them off me, turned round and put them down on the table and then we left. Apparently I should have known he had done this and I should have checked/reminded him so it was my fault.

It does seem a bit pointless for you both to have a key if that means that you both need to be there to unlock them. However, I don't see why the onus was on you to keep both keys sage - wouldn't it have made more sense to keep both keys in a safe place that you could both access? Either way, if your partner thought the system wasn't sensible, the time to point it out was then, not now the key is lost.

If the keys were not on a bunch of keys, it seems pointless to have passed one to another person. My bike lock key is on my general bunch of keys, as is DH's, but we only lock bikes together when we're out together and will retrieve bikes together - in a relatively short space of time