That's an amusing scene to play out.

"Guys! There's a mine underneath us!"
"Okay, everybody crouch."
"Got it."
"Bein' slow."
"Smooth and stealthayyy!"
"INCOMING FIRE!"
"TAKE COVER, RUN RUN RUN!"
"NO, THE MI-" *BOOM!*
*several audible sighs*
*Embarassed* "...sorry."

I wonder how often this occurs in squads. Probably too much for comfort.

Of course, the more common incident is that you are crouching into the core room as a recon kit and there are no more enemies inside, both titan hulls are at 5%, and you know you can blow it and pull out a narrow win for your team! ..and inevitably, right at this moment, some newb in an assault kit with the name "APMMastur1337" shows the incredible irony of his name by RUNNING right past the APM you are crouching by to get to the core and blowing you both to smithereens.

But yes, back to the topic.. I too notice that many APMs are placed poorly. Sometimes I can understand poor placement, particularly in situations where you want to deny the enemy quick access to an area and encourage them to use other paths. But most of the time, it is just quick and sloppy throw-down. I admit I've been sloppy a lot myself with them sometimes, but a quick look at my 2142 profile shows I don't use APMs much at ALL. Recon is not one of my better outfits.

Nice pictures of good APM placement. I adore the placement of the one fourth image down; used it myself on those fence openings sometimes.