YOU KNOW YOU ARE AN ADULT WHEN...
- Instead of getting Fwd from your friends with jokes or if you don't do this you will never be happy again (which I've been inclined to believe lately), you get Fwds with job offers from places where they work (like: we need 6 ppl for 3 days in may and 8 in june) or a lets get together request (its been X years since high school lets meet or we went to university together for 1 term we missed you lets get together).