Always tuck long pants into your socks when out in the field. If you don’t, your pant cuff might just scoop up a bumble bee, which will then crawl up the inside of the pant leg, get trapped at your crotch, and demonstrate its annoyance by stinging you multiple times in the pills. You will immediately drop the $300 worth of soil sampling gear you were carrying, and seriously aggravate your discomfort as you try to crush the critter. This will be followed by at least a couple of days of severe and highly localized itchiness, along with a surplus of off-color commentary from co-workers. Thankfully, it has only happened to me once in 30+ yrs of field work.