As long as you realise that someone you know will probably see it one day and then tell everyone they know.
Saw a documentary about a porn producer (think it was on Channel 4 or BBC 2). When the porn producer was interviewing a prospective first time porn 'actress' he advised her that if she does porn she should expect everyone she knows to find out about it (including her parents and siblings). She ended up not doing it because of that.