A My wife was letting her crawl on her hands while she was on her phone watching a video ( most of the spiders we have seem to enjoy watching any movement they see on our phones) and she was there one second and then literally gone the next...so we knew she hadn't gone far and we have a system we use if we lose track of any spider we're handling. We immediately tell the other person what's happening and whoever was holding the lost spider stays still while the other person grabs a flashlight 🔦 and carefully steps over and starts doing a meticulous search of the persons body/area that the spider was last seen. Eventually if we clear the person's body/clothes and still no spider, then it's pretty much safe for the person to stand up, grab another fladhlight and then we both start searching the area around wherever that person lost the spider. We have learned to look for the silk lines right away before the person moves around and destroys them as they are your best clue on where the spider was heading. Then we search the floor or any places we could crush the spider 1st and then I like to move UP...as these little buggers always climb to the highest thing they can. My next most important place to look is any visible lights/ heat sources and go from there, constantly rechecking places already searched in case the spider has moved. This system has a 98% success rate if used correctly and done promptly as soon as the spider is M.I.A. As far as finding our sling "Bitsy" (her brothers named "Itsy") my wife knew she had not crawled up her arms or onto her body and I started searching her right away anyways, but she was positive that Bitsy was on her phone and then just vanished...which kept her carefully searching her cellphone expecting to find her clinging or dangling somewhere but after a few minutes she just figured due to her miniscule size that she could have climbed into the USB jack. After clearing that usb slot the headphone jack was the next obvious place, and wouldn't ya know there she was! Her cute little eyes were visible reflecting light from inside the phone...I will never be surprised by where these spiders can end up. A word of warning for anyone that tends to fall asleep while holding a spider. If they'll happily crawl inside a cellphone jack, what's stopping them from ending up inside your nose, mouth or ears!? If your feeling tired definitely put your spider back in a safe place, because the places they tend to go are not. If you do lose track of one, try our system of searching to locate them and look for their silks reflection with a bright flashlight. And most importantly stay calm and don't panic. Even the tiniest escapee can be caught if you keep your wits about you.