I don't remember my dreams all that often, and when I do they seem to be quite vague. I have noticed that if I sleep in late or snooze/doze during the day, I'll sometimes get quite vivid images though.
On the bus to work a couple of days back I think I must have dozed off as a) the journey seemed quicker than normal despite the fact I was actually late and b) images popping into my head. It's weird as it's not like proper dreaming as I'm aware of the fact I'm sitting on the bus with my head against the window/window frame* losing my body heat through the window, then BAM an unrelated image pops into my head.
Last Thursday I was simultaneously sitting on a bus and visiting an internet site where a
lady's perfectly peachy round bottom popped up on the screen. The latter happened completely in my head, I wasn't actually surfing the net using a mobile device or anything like that. I suddenly woke up think "'Ello, where'd that come from?"
It was actually a surprise too, which isn't usually the case with dreams. Oh, and I rarely visit such sites. Honest. I did follow a link from this very forum a couple of days earlier though, which turned out to be extremely saucy (in that case it was art not photographs, and
the young lady's derriere in my dream was very photogenic in both pre and post production sense. The thread in question was actually
this one). I think that must have popped up out of my subconscious.
Dirty boys, you're corrupting me.

*Occasionally bouncing off the window frame if the road is a bit dodgy, which it is on the road running into Eltham High Street. I've learnt to accommodate for that though.