Vinny, sounds to me like you are CLUELESS here (or have never had any children, and if you did, had a nanny to raise them rather than parenting them yourself) hmmmmmm..... do both children and parent/parents go to sleep during the night?? hmmmmm... do children sometimes wake up during the night?? as much as you would like to be able to supervise 24/7, it just ain't happening!!! even parents need sleep, and sometimes it will be at a time where the kids have had enough of it.
chops... it's only just begun for you dude

yup, that's the kinda trouble that 5 year olds will find whenever they get the chance...... i could tell you a few stories that gave me nightmares, but don't feel like typing that much right now (as i go to sleep at the same time my kids are sleeping...LOL)
i'll list a couple:
took doorknobs off of 5 doors before i woke up one morning (when 5 and 2 years old, and the 2 year old was the screwdriver culprit)
knocked a hole in a bedroom door (when 9 and 6) and both still deny it to this day!!! was the funniest cover up attempt i'd ever seen.... took a sheet of typing paper and several shades of tan/brown crayons...tried to color just like the grain of the door, cut out a piece of the paper and taped it over the hole.
it really gets brutal when they stop *snitching* on one another, and start covering everything up as a team because they realize they will need the other one to defend them one day.