Well... It was only a drive to the shopping mall but then things turn out in a different way.
Firstly, me, my friend Lygia, my brother and a friend of his and his friend girlfriend entered in the elevator... But then when I push the button P... The elevator stops and we start to get a little panic... And then just to get things better all of us started to sweat a lot because the elevator was really tiny and my brother started talking bullshit like: "Oh, a friend of my was already locked in a elevator and the air was starting to fade away..." So we became more and more desesperated¬¬... Yeah, in situations of risck my brother is the worst person ever to be with!!!! Continuing well, they started to discuss about things like that for some time... And then from nothing the elevator started to move, like if it was dropping... and the girlfriend of my brother's friend lost her pose and started screaming and holding the elevator's walls. So everybody turn to me and asked what have I done and just said " Well we had 50/50 chance to live or die if I pressed the button P again, so I pressed and I think we lived." Everybody started to laugh because of the reaction of my brother's friend girlfriend...

MORAL OF THE HISTORY: NEVER EVER EVER EVER DISOBEY THE WARNING IN THE ELEVANTOR'S WALL THAT SAYS " ONLY FOUR PEOPLE"