This is how I unintentionally caught my escaped BP once and it was one of the scariest moments of my life when I realized she was stuck in it. I didn't set the trap down and if I ever have another escape removing them will be the first thing I do (my apartment complex puts them down yearly).
Ooh I think it was you that I saw this written about, I didn't know you didn't do it on purpose. I take back my statement then.
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1.0 Husband
0.1 Colombian BCI (Satin)
0.1 Spider BP (Loki), R.I.P... We will never forget you...