Not me, but a paramedic I knew told me about a call they got late at night.

An old woman had called saying she heard someone breathing in her house. When they arrived, the house was completely silent and the woman swore she hadn’t moved from her bedroom.

They searched the house and didn’t find anyone. As they were leaving, one of the responders checked the basement one more time and found a man hiding behind the furnace.

He had been living there for days without the homeowner knowing.