Diageo/Drinkaware - Don't See a Great Night Wasted (2006, UK)
Found this PIF in a set of Channel 4 breaks I'm going to be uploading soon. I hadn't seen this one before so it was a nice surprise - it seems to be the UK variant of an Irish campaign, although the only real difference is the voiceover and branding. The ending with the bartender probably reminds you of a certain other PIF which came out a year later.