I don't know if these could really be called "crazy requests" but I often get asked if people could bring their own coffee maker/fan/miscellaneous appliance.
Folks often travel with a lot of electronics and other electrical items. One time I had someone plug something in that tripped my fuse box. Luckily, I was at home at the time, otherwise my guests would have been completely in the dark.
I do worry about folks travelling with non-local-compliant electronics. I think most phones, tablets and laptops are dual voltage, and I provide hair dryers, but other miscellaneous plug-ins - who knows ?
I used to have a converter - but it "walked" and I haven't replaced it.