Have you tried just leaving a mug of water in the sink for her? I do that for some of mine. They prefer it to a bowl on the floor. No biggie and it isn't a huge deal to clean up water if they happen to spill.
Assumptions do nothing but make an ass out of u and me.
We can stick our heads in the sand for only so long before it starts choking us. Face it folks. The pet population is bad ALL OVER THE WORLD!