BLAME - COMMON EXCUSES
So things go wrong and you blame the gear, is the most common excuse we hear. That explains why your photos are not up to par and you just noticed everything was over or under, bad super bad backgrounds and so forth. 

Try this, use phrases like “it was caused by poor ambient defunct lighting pre-operational techniques”.  No one will know what the heck you are talking about and dismiss it after suing you.  (Def:  NO PLANNING)

Another good one is bad batteries you got at Wal-Mart. Since the strobe is powered by 4 super AA’s you missed most of the good shots because the alkaline were dying, the NiMH only gave half as many shots as the 2700’s promised. 

Blame the flash diffuser, not realizing that the overpriced diffusing device you paid 50 dollars for was forcing full pops to properly illuminate the waiter in the back of the room via the mirrors and chandeliers, or worse he's picking his nose or scratching his...

Now if nothing works, you may purchase a can of Blamesmanship, the new all-purpose spray we developed for Golfers who really make bad shots, one spray and all those around can't remember how bad your last shot was. (copyright) 

Just saturate the air when they are looking at your latest craft. They won't remember a thing.  Blamesmanship is available in 12 ounce spray cans, bulk packed in a dozen or fifty gallon drums for use by crops dusters to do small towns for the picture of the mayor with his hands on that High School cheerleader