People like my dad and Mark Bright who complain about footballers making mistakes. 'What he should have done there is...' -- well, no shit, you fucking idiot. Doubly so when it's the likes of Bright or Jim Beglin complaining about, say, Ryan Giggs' delivery. As if they could teach him fucking anything, ffs.
See also: my dad complaining EVERY TIME a player is offside. 'That should never happen!'