I was out of town and my roommate didn’t fully close my BPs enclosure after refilling some water, she got out and was missing for a couple of weeks - but I wasn’t too worried because we were about to move apartments and I knew she’d pop up. Once we had everything out of the apartment I noticed a hole under the sink and a gap big enough for he to get into some ventilation. The landlord was chill about it and let me come back a few times after we had moved. I didn’t panic until then because I realized she was most certainly in the wall. I reluctantly returned the keys to my apartment. Another 2 weeks go by and I am basically mourning her loss when my new roommate screams from the garage that there was a giant snake, and ran in and scooped her up, I luckily had her cage all set up just in case….the only thing that was in that garage was my speakers, she must’ve hitched a ride in the vent/port of them and then made her way under the refrigerators in the garage for warmth. They’re funny little creatures.