I was babysitting my friends kids the other day. I think it was the first time they had been to my house. It was cold outside so all 9 kids were playing inside. The oldest is Mason's age. He was peeking out the window in awe of the Tree House. Mason was so funny saying, "my dad built it...its so fun!" His friend kept repeating, "I just don't know if I can go up there." Mason gave him a confused look and said, "Why are you allergic or something?" You never know...he could be!