Officers at a military installation were being lectured about a new computer. The training officer said the computer was able to withstand nuclear and chemical attacks.
Suddenly, he saw that one of the officers had a cup of coffee and yelled, "There will be no eating or drinking in this room! You'll have to get rid of that coffee."
The officer said meekly, "Sure, but why?"
"Because a coffee spill could ruin the keyboard."
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