1 This week we had a main road closed for half a day because someone put out hard rubbish for the annual council collection. Two old fire extinguishers and a rusty steel box tied in a bundle. The bomb squad sent in three robots. Someone must have realized what was going on before they did the ritual detonation.
2 Some people should be arrested for what they cook in their kitchen.
3 Buying the material for a lithium battery would likely have the men in black waiting for you when you got home. At least going thru the Uni would cover that off. However the Uni is looking for investors, not amateur makers.