Yes I know I am but I am FURIOUS and feel a bit sick about the money spent. (This is long sorry as I don't want to drip feed).
The back story is that since I passed my driving test in April I have been looking for ways to get us access to a car, either via car ownership or car pool membership. The car ownership discussion involved several screamy, shouty rows after he said he wanted to spend no more than £1k on a car (that would mainly have been used to get him to work). We eventually got to a place where we were arranging to visit car dealerships to look at cars we liked the look of (around £3-4K after a large tax rebate). Then he got a job in London (I also work in London) so we decided to move to London in July, drop the car ownership idea and join a car club. He thought this was a better idea than dropping our savings on a car. I agreed. Cool beans.
After several months of asking him nicely to sign us up to one (I can't join one until April when I have had my licence for a year) and him finding every excuse under the sun to not sort it out as it was a hassle, I bet him £100 he would not sign us up to one before Xmas, as a joke. He accepted though has repeatedly refused to actually be drawn into a discussion about which car club, how much we want to spend, which one is best for us etc. Laughed it off basically and promise to do it when he had time.
(For your info he has since lost the job and we have had to economise in order to pay bills, rent etc. I have cancelled my gym membership etc. He is currently undergoing councelling for depression)
I came to the conclusion that he wasn't going to do it and resigned myself to the idea that I would just have to wait until April until I could sign up myself and drive myself and the two of us around. I had decided I would sign up to Whip Car as it is free to join and cheapest for day rental which I need to drive to my parents. I had told him this in semi-jest (ie "oh this is never going to happen I'll just have to wait until April etc")
Then I came home this evening to a call of "Guess what I have done? You owe me £100!"
He then said he had signed up to Zip Car, and it was "only" £59 plus £9.95 a month plus £29 to add me on in April. My face did this 
.
AIBU to be quite pissed off that he refused to be drawn on any kind of coversation about this in the past without throwing a massive paddy, has spunked £200 on something that he could have got cheaper if he had agreed to have a discussion about this, spent money we don't have and expected me to be pleased about it.
He has just gone to his councelling session almost in tears as I wasn't pleased about the 'nice surprise' he had for me and I feel awful 
but also v annoyed that he refused to do any research before throwing aload of money on something that I am unsure how often we will even use due to all the other hidden costs we have just discovered?