So I took my pretty new 15" Macbook Pro in to get the battery replaced after it was shutting down with no warning at 47%. Took about 30 min and when I got it back, I kept hearing a rattle noise when picking it up. Sounded like a loose screw. I took the back case off and shook it a bit and a small piece of plastic fell out. Everything else seemed in order and it works great. I feel like it's a bit odd for that kind of workmanship from a "Genius". Then again, maybe not. Anyone else have similar experiences? Worth a phone call or visit?