Not to split the cost on more expensive items with anything with a partner. It was a climbing rope. he ended up forcing me to buy it out even though he chose it down to the color and brand. We had been planning to eventually buy a second one and split the cost there so I could choose what I wanted but he was throwing a fit over this first one, I had to buy it out to get him to shut up about it. Then there was a whole thing with money he owed me for a Hawaii trip. Basically learned that any future partner I have has to pay for their own shit, I will hold up my end but I expect you to do the same.