This is how you say "no" to yellow:

Salesman: I've got a yellow one over there, would you like to check it out?
Customer: Did you just call me gay?
Salesman: No sir, I would never. Would you like to take a look at the yellow car?
Customer: You just did it again you prick. Do I look gay to you?
Salesman: Absolutely not sir. I'm sorry you misunderstood me. I just asked if you wanted to look at the yellow car
Customer: You call me a homo one more time and I'm going to beat your scrawny ass
Salesman: I uhm...I didn't...I... Uhm, sir... Would you like to go look at the black one I have in the back?
Customer: OOOOHH Black. That sounds great! Let's go check it out.