This was a nice, genuine note for this person to leave for their friend. No sarcasm here!
The redundancy of the statement of the chocolate bar's price is what is funny here. JOKE EXPLAINED.
'It says right here on your resume that you're strawberries. I'll just take your word for it.'
That look when your parents are leaving and you gonna eat the entire cake.
This guy is happy because he voted “Leave.” From where is for you to guess.