Awkward one: about politics (sorry) but only indirectly.
An inexperienced teacher in my department announced brightly at lunch she had told some year 8s the party she was voting for and that's the one 'they should also vote for.' She listed the reasons she had given them.
I interjected and quite nicely but also firmly told her that she was wrong to have done so. I said it was unlikely anyone would complain but if they did her actions would be difficult to justify as we are in an influential position.
However I got quite a lot of grumbling and muttered 'well it's true!' remarks from other departmental members. 
I'm 99% sure I was NOT BU.
But I will leave it to MN to decide.