You know you’re fat when…
… you can’t get shots.
Let me explain:
Excess buttocks fat, especially in women, can reduce the effectiveness of vaccines, painkillers, contraceptives and anti-nausea drugs that are typically injected into the buttocks’ gluteal muscles, researchers report.
“We are the first to report that the majority of intramuscular injections into the buttocks are not effective in the Western adult population,” said Victoria O. Chan, a researchers at The Adelaide and Meath Hospital in Dublin, Ireland, and the lead researcher on the study.
I also thought it was funny to read the line “junk in the trunk” in Forbes.

Not to nitpick, but… don’t you mean “You know you’re fat when…”?
As for the article, ridiculous. People need to lay off the twinkies and lay into the excercise.
You are dead on…
Sorry was rushing that one…