i'm not a fan of people who sponge, but sometimes it's cool to ask for help....i wouldn't ask from someone i hadn't seen in years, but that's me personally.
and i work in an industry where i kind of have to always ask for seemingly unattainable things and they usually magically happen..so i have a no harm in asking philosophy as well as a no harm in saying 'no', and leaving it at that...on both ends...if someone says 'no' to me for a request, there's never hard feelings from my end and i usually assume they have circumstances i'm not aware of and their own reasons.