Perhaps less of an AIBU and more of a rant ..
Headteacher at my DDs school tweets (in the public domain) pictures of himself in all kinds of poses DAILY (today's tweet (entirely public) was of himself pouting at the camera with a caption about being a handsome headteacher (he's really not) or something like that).
He goes on trips all over the UK and the world (think India, Nepal, China) and has constant meetings with apparently important people form these countries and insists on tweeting pictures of himself in said places, and with said people (personally I think he should travel and entertain less, and get in the bloody school more, and do more work, especially as us the tax payer are funding these ridiculous trips and meetings with international delegates!)
He always emails parents and tweets to tell everyone how amazing the school is and all the excellent things they are doing (it's all crap by the way - they aren't doing any of it)
He flirts with his partner online over Twitter constantly
He can't spell in half his tweets (that is VERY annoying!)
He posts daily pictures of 'romantic' scenes such as country walks, flowers in bloom, sun sets (usually with his face in the foreground)
He's a poor headteacher (the school is not doing well at all - lots of v disgruntled parents) but he is VERY good at PR and spin and boasting of his apparant brilliance, and he has managed to wangle an ofsted outstanding and got himself nominated for school of the year or something (it's all a show though).
He NEVER listens to parents and never ever acknowledges problems within the school. He seems to believe his own propaganda and only acknowledges those that sing his praises.
There's a LOT more, but to those in the local area, it's already obvious who I'm talking about!! and any more info might out-me!
Rant over! ....