Went to a friend's house to install a new kitchen faucet. Sink should be set and holes drilled already, just need to do the actual faucet install I was told... Get there, the guy who mounted the sink had not done the holes yet and there were NO parts there to hook up the faucet with or the drains. Great.
So he goes to drill the hole and only has a 2.5" saw with him. Ummmm that's a no go. So he goes home to get another one... ends up going to the store, getting a whole kit (OK), measures the bottom of the faucet which is about 1.25" on the threaded portion, and proceeds to drill the hole. I go to mount it and he's drilled a 1.75" hole so there is a lot of play in it. Dang it man is it that hard to drill the right size hole! Then I find out that he yanked the old sink out before disconnecting the RO faucet and busted the fitting off the bottom
Get the faucet mounted, measure out for the supply lines I'll need, go to the store... can't find the fitting for the RO. OK, I'll have to order that. Then at the register they can't find someone's stuff in the system so that takes a while, then the cash drawer gets stuck closed... The day sucked up to this point lol. Good thing is, faucet and drains did NOT leak on the first try, so once I got back to the house it took no time at all to finish up.
TL;DR
Went to install a faucet for a friend, job ended up a fair bit bigger and more frustrating than it should have been.