About T-Shirt Design
You All Realize I'm Going to Snap One Day Right T-Shirt works because it sounds more like something a real person would say than a random slogan. The everyday humor angle gives it a little extra personality without making the design too busy.
This would be easy to give as a gift for casual days, birthdays, or any random day when you want to make someone laugh. People who buy t shirts for the joke as much as the shirt itself will probably get what this design is going for.
The joke is quick, the message is clear, and that is really all it needs.