Block Button

i have always heard people talk about a delete button in a human that should be present so that they have the option of deleting anything from memories to people to events to circumstances to truth to faith to values to principles to responsibilities to anything and everything that you can possibly imagine. at first i used to agree and nod my head along with them in accordance to this "wish" but when i now think about it, i think it would be better for us to have a block button. yes i know this might not make sense but i think that block button would do more good than a delete button. block your memories, if you dont want to think about them for some time and get out of the realm of the real world for a minute. something like the msn messenger block user list. i think that sounds more practical than a delete button. at least this should have been present in a human.