Is it normal that i'm afraid to be honest because i think people will get mad?

This weekend, I had to watch my parents' apartment and their dog while they were away. The dog is always supposed to go out at 7 AM, and I had been doing that every day. This morning though, my alarm clock didn't go off and I didn't wake up until 10:30. I found a puddle of pee on the carpet, unsurprisingly. I got the stain out fine, but there's still the smell of cleaner in the apartment that won't go away.

When my mother called this morning, I told her what had happened. I was OK with telling her because she doesn't overreact, but my dad tends to get mad at the smallest thing and blow it out of proportion. I'm worried what he's going to say about it.

I know it wasn't my fault my alarm didn't go off, and I know that I fixed the problem, but even besides this issue I'm always afraid that if I tell someone the truth about a mistake I've made, they'll get incredibly angry and blow up at me. In the past, it's prevented me from talking about problems at work and school.

Do other people get scared of telling the truth for this reason?