Attorneys for North Face, the clothing line, sent a letter to an 18 year old who started a clothing line called “South Butt.”  The demand letter said

Your use of the South Butt & design mark and the Never Stop Relaxing tagline is not defensible as a parody.  It is our client’s hope that this matter can be amicably resolved and that you will voluntarily abandon your pending trademark application and immediately discontinue your use of the South Butt and Design Mark and the Never Stop Exploring tagline.

The young designer’s lawyer responded, “There appears to be little recognition, if any, that the savvy of consumers precludes anyone from confusing a face with a butt.”  I agree.