I like to be prepared for most situations, so this is the stuff I have in my backpack every day (top left to bottom right):
- Two USB cables
- USB charger
- Pen
- Deodorant
- Tissues
- Radiacode 102
- Power bank
- 2x USB C to A adapter
- USB condom
- Some emergency cash
- Tape
- Flipper zero
- Multitool
- Mints
- Desinfectant
- Wurkkos FC11C flashlight
- Hair ties
- Airtag
- Earplugs
- Sunscreen
- FFP2 masks
- Disposable gloves
- Some meds / band aids
Additionally in my pockets:
- Keys
- Wallet
- Bluetooth earbuds
- Phone


Probably when I measured >3kCPS in a train. Turned out it was a very spicy TC-99m patient.
Yours?
~8k CPS at the market, I’m fairly confident it was a radiation therapy patient as well. Did not expect it to be so high! Also got some interesting readings from an old “home science kit” from the 60s.