When I worked for Cisco, the prototypes for all new network switch designs had to go through Mechanical Design Verification Testing (MDVT). One part of this test required the switches to be dropped from various angles and from heights up to 1 meter. The switches had to continue passing traffic for the duration of the test.
I took four Catalyst 2900 prototypes to a small independent testing lab that had contracted with Cisco to do drop testing. I explained the setup to the woman in charge of the testing. I showed her how to connect each switch to a laptop, start and stop the test, and verify that the results had been recorded.
As I was about to leave, I turned to her and said in a very serious almost conspiratorial tone, "Remember these are prototypes so whatever you do, don't drop them."
She looked startled and said, "But that's what we do here!"