Did i just play with an employee? or employees?

I don't know if these were riot employees or what. Ive been playing 3 years now and have yet to see one so I'm not 100% sure it wasn't a lie, either way they were great people. I've read that only employees can have the "riot --" summoners name. "Riot Bright" and "Riot sgtsnuggy" were great fun to play with. If they were employees, I doubt you'll see this, thank you for a good game and a way to end the night, the game is more pleasant with employees like you playing.. if it was just random people pulling a joke on me then I still think they were friendly. I want to know if people here have played with employees and how they behave? if you have please share a good story.