Wirelessly posted (BlackBerry8700/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102)
1. Mrs. Bollar has used one in a Piper Cherokee, so I would say yes.
2. I don't care, but the airline could always schedule same sex crews.
3. I think the forward part of the starboard galley and the area behind the FO is large enough for a toilet.