Originally Posted by Trazhenko

I should have clarified: If you happened to target a stealthed druid, you would just get an invalid target error for the sap (because the druid isn't a humanoid), and the macro would terminate.

I'm pretty sure you can't put 2 cast commands into the macro and have them run like that. I tried to make a riposte/hemo macro like that before with just:

/cast Riposte
/cast Hemorrhage

The result was just "that ability is not ready yet".