Most letters are yes or no. A cheque in the mail is yes. A bill in the mail is no. Dear Gorgeous is yes. Dear John is no. Envelopes with foreign stamps are usually yes. Envelopes with government letterhead are usually no. Know your local lopper and fella is yes. Know your local real estate agent is nosy and no. Birthday cards are yes. Tax statements are no. Christmas cards are yes. Anonymous threats are no. August salutations are yes. Marching orders are no. Acceptance notices are yes. Rejection slips are no. MPs’ letters are yes. MPs’ letters are no.