I think there are the makings of quite a large book on the subject of "inappropriate lodgings for performers", just as there's an equally large one on "fantastic hospitality for performers".   

I went through a time in my life when I was severely allergic to cats (and, to a lesser extent, dogs) and the only rider to the contract I was then using said "Accommodation in a cat-free home, please" after a US tour which had me in a couple of emergency rooms on respiration equipment.   My favourite response to this rider was someone who wrote "We do have a cat but he's very retiring". Took a while to explain to the person concerned that the shyness or bravado of the cat wasn't the issue at stake!

While touring as half of Anonyma we did request an ironing board, but this wasn't to cope with our concert clothing - it was the best acceptable alternative to a keyboard stand. This was a tour when we had no tour vehicle but we did have two synths and simply couldn't carry keyboard stands and amps around with us. We realised early on that even if a venue could find one keyboard stand it was unlikely to be able to provide the two we needed. It was fun seeing what people provided in terms of an amp for the keyboards and even better seeing what they rigged up as a keyboard stand - some of the organisers clearly thought we'd only asked for an ironing board as some kind of feminist statement!

Anne