We did this and was awoken by a noise early hours , shot up out of bed thinking we were being robbed only to find a duck that had commando under our van and into our awning .The nice thing about an awning is being able to sleep with the sliding door open should one desire, maintaining privacy and keeping one cool.

I must have startled it as it repeatedly flew at the roof of the awning trying to escape, quacking loudly and crapping fluorescent yellow crap everywhere!
After a short while it scurried back out the same way it got in ....I lay back down and gave it a minute for my heart rate to get back to more normal....all the while thinking 'what the fook just happened' and who is gonna clean all this crap up ?

Scared the life out me!