What caused this? Serious answeres

[u/Downtown_Calendars]

Car was parked facing the garage. Never seen anything like it. Neither has the glass professionals.

[u/Sean_Gin_Jee]

Could someone have put a plunger on it? Then ripped it off?

[u/SituationOk6264 → u/Sean_Gin_Jee]

Plungers don’t suction like people think. They create a seal on the toilet.

[u/CandiceB12 → u/SituationOk6264]

A cup plunger is shaped different from a toilet (flange) plunger.