Let me introduce you to the Disney Bomb… circa 1943:
[it] was fitted with solid-fuel rockets to accelerate its descent, giving it an impact speed of 990 mph (1,590 km/h)—substantially beyond the 750 mph (1,210 km/h) free-fall impact velocity of the 5-tonne Tallboy “earthquake” bomb for comparable purposes.
The Disney could penetrate 16 ft (4.9 m) of solid concrete before detonating.
Having worked a wage slave summer job assembling fireworks, you eventually get comfortable. Usually complacent too, which isn’t great in a factory but there’s standards like spark prevention and max magazine size that keeps most accidents inconsequential.
In a battlefield tho, 100% not. The rule of “If you didn’t see it placed there, it’s booby trapped” should be universal, doubly so if you’re handling UXO.