When I was little I was home alone and called 911. When they answered I hung up but they called back twice and I just hung up both times because I was scared. Maybe 5 minutes later I hear a ring on my doorbell and when I open it this black cop turns a corner and points his gun at me then gives me a lecture about calling 911 without reason. Parents never knew for like 5 years until I told them a year or so ago.
Other times were because mom was having chest pains and heart attack symptoms in the middle of the night but it turned out to be anxiety. Paramedics still came and took her away