Today's cartoon by Adams from the Daily Telegraph shows Greek Prime Minister Alexis Tsipras in a German bierkeller with German Chancellor Angela Merkel as a busty barmaid. Tspiras has already had too much to drink but he's calling for yet another 'stein' of beer. Merkel looks unimpressed and points to a sign which reads: "Do not ask for credit as refusal may offend". This is a sign often seen in bars which basically means that you have to pay for your drinks when you order them and should not expect to 'run a tab' (to accumulate charges on a bill at a bar).
The cartoon is clearly a metaphor for the Greek debt crisis with the Greeks 'drunk' on cheap credit, and the Germans no longer willing to bankroll their drinking spree. However, there's also a reference to the idea of the 'Last Chance Saloon', which has been translated into faux-German here. Last Chance Saloon was a popular name of a type of bar in the United States that began to appear in the 19th century as an early expression of border economics. Saloons situated near areas where alcohol was not easily obtainable frequently took the name as a literal indication to customers that this was their final opportunity to imbibe before progressing to an area where obtaining, selling or drinking alcoholic drinks was prohibited. The phrase "last chance saloon" also has common British metaphorical use, based upon this historical context. Here the phrase refers to the fact that we've reached the point of no return where Greece must come up with acceptable proposals for yet another bailout plan by Sunday or exit the euro (the famous 'Grexit').