How strict is Disney with occupancy?

[vinrmc86]

We are staying at the Caribbean Beach for 7 nights and there is 5 of us, but the limit is 4, is there anyway I could sneak someone in? I already am renting a car so we have a ride to the hotel and back, but how is the hotel, this is our first time going and the cabins are already booked when we are going, and we can't reschedule our trip because of work can you guys help me out?

 

[The Mom]

I believe that the OP has his answer, along with a few suggestions and offers of help (thanks, Richard) so it's time to put this baby to bed.