How dare you interrupt my 18 hours of sleep per day.

*kids

Adding video to channels (Kids) - requested by brycewi19.

Your cat has insomnia?

Is there a way to disable permanently stupid annotations in Youtube ??

Best way I've found is the ImprovedTube extension for Chrome:
http://www.improvedtube.com/

Can disable annotations, turn on/off autoplay, automatically force the quality to a setting that you want, hide the comments section, etc. Some of the settings are buggy (autoplay off for me works MOST of the time but not all), but the annotations part is solid in my experience.

I hate bloody annotations also.

If you're signed into YouTube you can go to: https://www.youtube.com/account_playback and uncheck the option for annotations. That turns them off by default but you can turn them on if you want from the player's setting thing. Sucky part is, you lose the easy ability to click on the boxes people put on their videos for related stuff.