We've never been caught once we were set up, but one night we were just pulling off the road when the neighbor suddenly pulled out of her driveway. It was nearly dark by then, so she caught us in her headlights. She pulled over and I put my bike down and went to talk to her.
Me: "We've been riding all day and couldn't find a spot to sleep, so when we saw this vacant lot, we figured we would pull back in there ane spend the night. The kids are absolutely exhausted?"
Her: "You're going to sleep there? but it's all rocky and a mess. Wouldn't you be more comfortable next door on our lawn?"
She ended up bringing back a whold box of donuts for us and the kids slept on her trampoline.