Should I allow a client to smoke pot before a session?

by Ed
(Santa Fe, NM)

I have a client who has started to smoke marijuana before sessions because he says it relaxes him. I'm not sure if I should allow this.

In the past I've had clients show up with the obvious smell of alcohol on their breaths and have gently told them that they should be sober to receive a massage. But I am not sure if the same applies to marijuana.

What are the pros and cons?

Thanks.