As to "pétards"... As mentioned earlier in this thread, I was a French language/lit major in college and spent about a year there. I'm fortunate that my line of work has allowed me to keep up with it for the past 25 years...
Well, here's the awkward part about about being a Yank named "Peter" in France. That combination of letters exists in the French language but their version, with the proper accent written over the first "E", << Péter >> translates to the unconjugated version of the verb "to fart"
So one might be at greater risk of being hoisted by one's own petard after glomming all the pork 'n beans from the reenactment Company Mess