the same thing (sorta...only without the gluey trap) happened to me last week. dh left the door going into the garage open, i was cooking dinner. I called for one of my girls and she wouldn't come. I started looking everywhere and had my dd looking everywhere. I checked my bedroom, bathrooms, upstairs...and then I just started RUNNING around the neighborhood. asking neighbors. crying. called dh and cried to him. he had no idea he had left the door open..and honestly, it was only cracked open.
anyway, long story short, my dd came running after me saying that she found her in my bedroom. She was laying next to a pair of black shoes at the foot of my bed and neither of us saw her!!! she blended in too well LOL
she was ok of course...totally sleepy...but my heart hurt and I thought I was about to die LOL
please let us know if you find anything to work on getting the sticky stuff out. I'll be curious