Be careful! Very very careful. The C25k is a gateway drug. Before you know it, you're doing 10K's, 10 milers, and half marathons. If you get in really deep you'll also complete full marathons! ( the shame of it! ). Someday you'll check your bank statement only to find a big fat zero where you once had money, and now runDisney now has ALL your money!! Think long and hard about starting to run!
I like to think I can quit anytime, I mean I mostly do 5ks with an occasional half marathon. Sure, I can quit whenever I want to ........