Guys,
I used to get really upset with beeping or random searches. I now wear RAF shoes (rubber soles) and take off my belt, watch and pass (I am skint so I don't have any change to empty out). No beeping for weeks and they see that I have made an effort, so they leave the randoms for the other crew still tutting behind me. Don't fight it, you always loose.
If you are a pax, just travel light and dress for min agro. Leave your change etc. in your bag till you get the other side.
Keep breathing...it's on the checklist.