I once took a bus to Oxford, got the driver to drop me at a field gate, walked across the field and broke though the hedge and found myself within a few yards of a GF's Dad's boat, that she was spending the week on with her family. Talk about blind faith! They were as amazed to see me, as I them. I slept on the roof, which was amusing when a couple of pissed up old blokes came staggering past late on Saturday and I was able to listen in to their conversation while one of them peed in the canal. Later the same GF was sick on me at a party and she married a really obnoxious bloke and became quite obnoxious herself so I'm glad sleeping on her Dad's boat roof was the closest I got really.
The boat was quite cramped, that was my only experience of canal boats and I've never wanted to do it since then.