Why don't I look like Michelle Obama when I am in the garden?

[RoyaleBelle]

I am usually covered in dirt, bug repellent and sweating my toosh off.

 

[Where's my hamburger?]

Because your not black.

 

[Johnny]

Leave Michelle Alone !

 

[the man]

Because you aren't covered in sewage.

 

[1/2 vulcan]

you are horrid