The most dangerous thing I have ever done on accident.

There was a sqaure concrete foundation with and L shaped hole and a small sqaure hole, the sqaure hole was like 5ft by 5ft and the L shaped hole was like 4ft to the other side and like 6ft long on both sides and I stood in the L shaped hole and it had a cap in it but the condition of it was cracking and I am lucky I didn't fall deep in it and die and I think that it had concrete and rebar and I think it was old like from the 70s and it was like a mile from the high line poles and I stayed away from it because I think that it could be dangerous. I think that the rebar could have slid out from under me an I could have died in it.