Yes, well, we know what you did.
Maggie, I'm glad you and your husband made the choice not to buy that place before deciding to relieve yourself in the water tank. I've never seen a tank set up like that before, but then, I haven't been in a lot of attics. It sounds incredibly daring to empty your bladder within possible earshot of someone who wouldn't approve -- but especially someone who's in the middle of trying to sell the house to you! I wouldn't want to try that often.