Many years ago I was flat hunting and went to look at a room that was up for renting. A friend that I was staying with at the time came with me as she knew the area better than I did. Much to my delight when I walked into the kitchen of the house there were two cats and I was ready to move in there and then

I knew my friend had (and still has) a frog phobia, but little did I know that she'd also inherited her mothers phobia of cats - oh dear!

I did go back in and explain (and look at the room).
My friend and I did have a good giggle about it afterwards