Invited to DH's friends house for lunch, beautiful house, very posh. All sat down for coffee on their tables and chairs outside. Excused myself to go to the loo and the loudest fart ever escaped. Everyone looked mortified and I just said sorry. Went to the bathroom, nearly cried out of embarrassment and luckily everyone carried on as normal when I returned although I felt his colleague was smirking a bit. Can kind of see the funny side now but can see DH is still embarrassed which makes me feel bad but not like it was done purposely. Definitely not my finest hour.....