I have the BKR bottle from the Spring RZBOS and I've been using it a ton. Lately, I've noticed that when I carry it by the handle, sometimes the lid pops off the bottle. I've been chalking it up to my not closing the lid tightly enough. Today, I went to put the bottle in my backpack and the top popped off when I laid it on it's side. Horrified, I cleaned up the mess and screwed the top on tightly. Then, as I was watching, the top slowly began unscrewing. It didn't unscrew all the way, just enough that it wasn't as secure as it had been. Before I declare my bottle haunted and drop kick it into the ocean, is anyone else having issues?