It's playing with plutonium.

Do I want to juggle plutonium, no thank you Sir. 

It's only blood, it's not radioactive plutonium waste!

Or are you expecting to have some sort of Perry Mason moment where under your questioning he slips up and admits to being an Al Qaeda operative using your address to receive shipments of plutonium?

The label should make plutonium look safe by comparison.

And in those cases, techs can "suite up" like it's plutonium in there. 

For the time travel, you will need a Delorean (hard to find), a flux capacitor (no longer available), and plutonium to run it (maybe a felony for you to possess).

Or the plutonium.

Or a hostile nation could find a way to recover them and use the uranium/plutonium on board to make a dirty bomb and use it against us (was that a Tom Clancy novel?).

If you make 8% return and adjust for inflation, you have a gain of 1%. 1% gain is better than smoking a cigarette containing plutonium. 9 to 5 till 65 (while saving) might get you an extra year in a care home before you run out of funds and Medicaid kicks in.