My experience with WSGR in 2005 was that they were ultra-interested in helping us despite a near total lack of any credible way of paying them in the immediate future. I'm guessing Mint is not atypical in this regard.
I was in SV at that time. Perhaps it was the sign of the times and WSGR had their pick of startups. Luckily, we were able to raise VC money but at the time, it was a bit demoralizing to have a legal firm say no to your money.
Could it have been the Manila thing?