I fart at work and it has caused a weird situation?

hahaha, oi basically yeah get this. I was sitting up at work and i needed this really big fart that i had been holding in for ages, i couldn't be bothered to hold it in any more so i just did it on the chair, i didn't think anyone would hear it cos i never leaned to the side so i thought all the noise and vibrations would be absorbed by my bum cheeks but it actually came out like a peice of thunder and loads of peope heard it. It wasn't so bad really cos only one woman was around and she isnt exactly upper cl so she didnt care but the problem is every time my mobile phone gets a text message (is on silent vibrate) people think its me farting and i get screamed at and windows go flying open and all sorts. I have been dropping a few farts in there but mainly its my phone so i need to know how i can these people to not look at me everytime they have suspicions of farts ?