.
Its not terribly dangerous unless it is powder or dust that you might breathe in.
My Dad led programs at GE developing radioisotope thermal generators for deep space spacecraft power generation. His RTGs are still generating power on the Voyager spacecraft.
During that program, he used to tell me stories about the toxicity of plutonium — it was very scary stuff. The engineering work they did to make there would be no plutonium spills on launch if the rocket crashed was just incredible.
Try telling that to Harry Daghlian and Louis Slotin. The exact same plutonium core killed the both of them in separate incidents without exploding or either of them breathing it in.