Why I Shouldn't Be a Doctor (AKA a hint to mom)

Hello, my name is Doctor E. I am subbing for your doctor today. Qualified? Of course I'm qualified! I even have a PhD!

 See? Ok, next I want for you to lay down. Yes, right there on the sofa. Next, spit into this cup. SPIT INTO THE CUP, HEAR???. Great!! :) Now let me scan your saliva...

 

Whoops!!