This past week, from Representative Billy Long (r), via Twitter:

U.S. Rep. Billy Long ‏@USRepLong Oct 1
Unclear: Now that there’s water on Mars, will the EPA try to regulate it? 8:24 AM – 1 Oct 2015

Go ahead, take a sip first.

And a response:

Monty Dobson ‏@lemont
@USRepLong so we should go back to the good old days of dumping toxic waste into our waterways right? 8:51 AM – 1 Oct 2015