Football things that you find incredibly boring.

[Awimb]

doing an all time best arsenal starting XI

What's the point?

Throw ins.

[Burney]

Throw ins.

People laughing at the referee using foam to mark the position for free kicks despite it being a perfectly sensible idea.

[PSRB]

Throw ins.

Players claiming throw-ins when they clearly touch it last....ditto goal kicks/corners*

*This is more of a bugbear than boring

[Pat Vegas]

Players claiming throw-ins when they clearly touch it last....ditto goal kicks/corners*

*This is more of a bugbear than boring

And when players know they are offside but pretend they are not and put the ball in the net all casual.
And fans who know it's offside but still celebrate and get mad.