In some countries this would be seen as attempting to bribe someone (as you are clearly attempting to commit a bribe). This might not end well for you or the employee. It would almost certainly be a disciplinary issue for a hotel employee and could be a legal one for both of you.

In countries, where a tipping culture does not exhist, it will probably be met with complete confusion.

Try it in the UAE, Saudi Arabia, or China and see what happens.....