I really hate being lied to, even over little things.
I seem to be able to sniff about a lie. I know when someone's lying to me, even if I'm not sure exactly what the lie is.
E.g. BF called me when I was with friends. I was about to leave, as planned. He called to tell me he'd got some food for dinner. Lovely. Except I knew he was lying. What he'd actually done was called to find out when I'd be home because he wasn't there, although it was 2 days before I realised that. Previously I just knew hed lied.
It turns out he'd been to see a friend for help with something that's been worrying him and which he hadn't told me about. Nothing sinister, no real reason to lie, except not to worry me, but also not that terrible in the scheme of things.
So the truth was fine, but he'd chosen not to tell me. He didn't exactly lie, in that he didn’t tell me he wasn't with the friend or that he was at home, but when we spoke I knew something was "off".
Obviously I know him pretty well, but I find the same thing with colleagues and aquaintances. I can feel when they're not being straight with me.
This is not necessarily a good talent to have!