Will try and be brief as possible.
I started a new job about 6 weeks ago in a restaurant.
The chef there was awful. He called you names (Told me to get my head out of my arse for forgetting a pot of gravy 
), he threw stuff around in the kitchen, told a few members of staff that he needed to go for a fag before he stabbed one of us, shouting and swearing in the kitchen about customers, that could 100% hear him, sexual remarks to my boss - that kind of carry on.
My boss, is my sons, best friends, mum and I see her quite a bit.
I was at her house one day last week, and she asked how work went. I sarcastically said "X was on fine form today."
She asked why, and I told her some of the above. I wasn't 'telling tales' and only told her because she asked and the conversation went that way.
What I didnt know, was that X was on his final warning and had only worked for this business since August.
It was the final straw for my boss.
I went into work today and everybody is flustered because he's been sacked.
Nobody apart from me, knows why, and everybody is speculating. Nobody was really a big fan of his and everybody is wondering if it is their fault (It was mentioned to the other chef that it's because of something he said to one of us last week.)
Tbh, if I'd have known it would cost him his job, I wouldn't have said anything and I do feel guilty.
He started work in August '17, and had 3 months off, from Sept - Dec, so to get to your final warning in the few months that he was actually there, is quite a feat.
When my boss comes back off holiday, she will no doubt mention why he was sacked to other staff members, and I'm worried that everybody will be mad at me 
and I'm trying to convince myself that I haven't done anything wrong.
Have I?