I hope you're the sole owner of the company. If I found out that one of my employees had arranged a bonus like this I'd have them escorted from the office and throw their shit on the street.
That being said, if you're the only one with access to your financial records, have no intention of trying to pass this off to the IRS as a "business expense", the employee is trustowrthy and wuld never rat you out to a competitor, your wife, gf, etc...and the business and social groups you encounter wouldn't be offended by such a "bonus" then go for it. Too many variables for me. Good luck!