Alan - "You bloody bastard!" 

And then placard Jesus makes you see the error of your ways

I came on here to comment the exact same thing!

So nice

Watch east is east, that’s British humour lad.

Watch, It crowd also

Its some weird kind of it its not exactly Blackadder

I guess. If you don't get it, then it may help to know the context of the show, and if you watch the whole thing and still don't get it, well there you go - that's life.