A Losing Streak attributes to a "losing streak". Grandad shows Del a double-headed coin that he got off a Scottish man during the war, and advises Del to use it against Boycie. Grandad clearly remembers the story behind the coin as if it were only yesterday. According to him, the man said: "I want you to have something to remember me by, Trotter. Take me lucky coin." Then, he went (as in the Scottish man deserted, not died as Del thought). Later, at "The Nag's Head", the Trotter Brothers and Trigger talk about Del's bad luck until Boycie walks in. Del challenges him
Grandad (Only Fools and Horses) on - wangling himself a bungalow by feigning illness being one of his many talents as seen in "Homesick". Similarly, in "Who's a Pretty Boy?", he conned Delboy out of £5, informing him the canary he purchased from the pet shop cost him £50, when in reality cost him £45 (Del Boy finds out at the end of the episode, and replied "£45?", to which Grandad innocently replies, "What did I say?") And in "A Slow Bus To Chingford" he almost succeeds in conning Del out of £50 by betting him that no-one will turn up for the Trotters' proposed