I didn't explain very well.

I wasn't off sick on that day (Monday); it was just a scheduled day off.

I mentioned it because on Sunday, I was in charge (duty manager). On Monday, I was off and the boss was in charge. On Tuesday, I was given the telling off (for not 'managing' the day well enough).

Thanks so much for your reply.

I am job-hunting like mad.

But haven't ruled out the other options; official complaint etc.

I'm trying to keep a diary, as suggested. But I'm just too tired tonight.

Mood-wise, I'm not doing too badly.

BTW, I haven't worked with this person since it happened. So that's going to be interesting!

It's made so much difference, the support of you guys here. I don't feel alone.