IT is not something you normally consider until you've found out the expensive way but brake lever clamp tightness is something i recommend you all check.
Most brake lever clamps need only be tightened to 4-6nm / 20-30lbin
If you don't have access to a torque wrench then pop to a bike shop and have them checked.
The lever clamps should only be tightened to the point where they hold still for braking but could move in the case of a crash.
I personally bent both of my lever blades on my avid elixr's
and this is what is left of Matt's avid Code lever after he had an off
i would go as far as to say that both were excessively tight and would probably have suffered a lot less damage if the clamps had been correctly torqued.
I ended up replacing my brakes at a cost of £200 but lever blades would have cost around £20 each plus potential need to re-bleed the brakes.
Matts sheared at the clamp meaning a whole new lever assembly is required at a cost of £120 + as well as a fresh bleed required.
lots of you possibly have yours torqued correctly already but this is a warning for those that don't.
if you can move the lever body by hand with a reasonable amount of force you might be ok but it is worth checking before you write your brakes off.