"To lose one drugs adviser may be regarded as a misfortune... "

"...To lose both looks like carelessness."

Another senior government drugs adviser has quit, hours before ministers were expected to ban a new "legal high".

Nice going, Postman Pat!

The council will make its decision whether the drug should be banned on Monday morning, and Mr Johnson was expected to announce a ban later in the day.

However, the council's meeting will be overshadowed by the resignation of Dr Taylor - the ACMD's veterinary medicine expert whose post is required by law to be filled on the committee.

She said she "did not have trust" in the way the government would treat the council's advice.

Who could blame her?