Burglars do strange things, sometimes...
I know because I was a Texas "Pre parole" officer for 12 years, which required me to interview criminals prior to their parole board decision vote.
I vividly remember a burglar who entered an occupied home late one night, stole a pistol off the coffee table, and left without awakening the lady asleep on the sofa, beside the coffee table!
Her pistol was the only thing stolen!
He said he did things like that (entering homes he knew were occupied) because it gave him an unbelievable adrenalin rush that he was addicted to.
On the other hand, a burglar confided in me that he always approached homes that were completely dark (no lights on), and surrounded by bushes he could hide in. Then he would throw a brick (which he carried to each crime scene) thru the bathroom window (the small window between the other, larger windows). When the thrown brick clattered noisily into the bathroom (usually landing in the bath tub), he waited for barking dogs, lights coming on, loud talking/yelling etc., from inside the house. If any of these things happened, he would simply run away in the dark. If no signs of alarm were apparent, he would climb thru the broken bathroom window and steal whatever was on hand.
Not all of them are low IQ.