NICE TASTE

Sam entered into a pharmacy, and pours  some liquid into a spoon and offers it to the chemist's assistant and said 'could you taste this pleas?', the assistant takes the spoon, put the liquid in his mouth and shakes it a little and swallowed it. then Sam asked 'Does it taste sweet?'. 'No, not at all' says the assistant. "Good, The doctor told me to come here and get my urine tested for sugar" Says Sam