Only Fools and Horses, Series 1 (1981)

[Del and Rodney are at The Nag's Head, and Del notices Trigger]

Del:
Ah, there he is. Oi, Trigger?! (gestures and Trigger comes over) Here. You know my brother, don't you, eh? [points at Rodney]

Trigger:
Yeah, course I do. (to Rodney) How you going, Dave? (Trigger and Rodney shake hands; to Del) Sorry I'm late, Del Boy. I had to pop round me sister's to sort out an alibi for next Thursday. (to barmaid) Joycie! (he goes over to the bar as Del drinks)

Rodney:
Del?

Del:
Hmm?

Rodney:
Del?

Del:
What?

Rodney:
(quietly) Why do they call him Trigger? Does he carry a gun?

Del:
No. It's 'cause he looks like a horse.