I checked in 7 times tonight, but no badge. My checkins were:
- 8.13 pm: bar
- 8.15 pm: record store
- 8.22 pm: bagel place (the bar + record store didn't have wifi, so...)
- 9.03 pm: park
- 9.09 pm plaza
- 9.27 pm park
- 10.56 pm pub

What could be the problem? I never did more than 3 checkins in 15 minutes.

This is a pretty straight forward badge. Make sure that you don't already have it. If not, wait a few hours and try it again. There are plenty of recent unlocks on twitter. Good luck!!

@lene just tested on a new account. Unlocked on 4th straight checkin. You probably have it already. It's an old badge.

It finally unblocked at the 8th checkin. Thanks guys!

Question about the badge...

I have been on Foursquare for several months, and have never been able to unlock this badge, even on nights where I made several check-ins. Last night, for instance, I checked in 10 times between 8pm and 2am.

Any idea why the badge might not be unlocking?

Are specific venue categories needed?

My guess that it must be venues such as "bar", "pub", etc... I got mine at a "pub" at 7:05PM...