-concrete I'm asking for a friend ( I'm the friend ) and I just wanna see for real how heavy an anvil would have to be to burn their ( Me ) skin into the concrete via intense and fast pressure. Help??????!?!?!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?!?!!?!?!?!!?!!?