But his alarm system still tracked how many times the door opened and closed, giving a timetable of how long the intruder had been in and out.
“I could tell from the sensors that the doors had been opened and closed over a period of about an hour and a half," said Roman.
Even more puzzling: Origami roses were crafted by the intruder, and left on the toilet paper rolls.
“As toilet paper flowers go, I think it’s pretty nice," Roman said.
After calming down and considering the possibilities, Roman now believes he has a somewhat logical explanation.
"I think it was probably the work of a professional that just showed up at the wrong house on the one day of the year I don’t lock my door!" he said.
Roman said there was one room in the house that wasn’t cleaned, the kitchen.
Officers searched through the house and spoke with neighbors. Police said they still don’t have an explanation.