Is it normal to masterbate in public places

Is it normal to masterbate in public places? Because I have masterbated at the movies, football and baseball games, at a play ground, a national park,. In class, in a resturant, in the middle of a family party, on my front lawn and porch, me and my cousin have fingered each other in all those places and on my ex boyfriends front lawn. So please tell me what u think of all this and if its normal thanks