Since pure thallium can be poisonous to the touch...does that make it death metal?
And send.
jokes
My dad was an electrical engineer. For Father’s Day, here’s a joke he used to tell:
The optimist sees the glass as half full. The pessimist sees the glass as half empty. The engineer sees the glass as twice as big as it needs to be.
Happy Father’s Day!
ZnatGD 
