There are some coworkers, that when they leave the company, it has an impact. You will really miss working with them.
Consider the videos below my tribute to John Shoffeitt, a most excellent network engineer.
One measure of a coworker is how you feel after talking with them. Do they give you strength, or do they take it away. John always made my day better.
John is leaving for greener pastures (well, more like sand color). I wish him the best