I was mildly surprised to find out that the stall was selling "Funky Christian T-shirts" and other such merchandise. The usual trite slogans abounded (eg "No Jesus, No Peace. Know Jesus, Know Peace"), and it seemed that I'd unconsciously filtered them out, only being drawn to the one with the seditious message. Looking closer at it, I found that "Rom 12:2" was written at the bottom of the shirt.
After a quick glance at my portable concordance guide, I immediately conceptualised the most obvious sequel (at least to me) in the same vein: "I hate my family (Lk 14:26)". I also was put in mind of the corollary of the "No Jesus, No Peace" slogan:

"Know God, Know Sin. No God, No Sin."