This is yet another perfectly-timed photograph! Any janitor can look a little bit like Scruffy from 'Futurama' - all you need is some overalls and a world-weary look. Having the same facial hair certainly helps, but it isn't the be-all and end-all.
What makes this the perfect Scruffy lookalike picture is the pose. Look at the way he's leaning on that stick. Maybe Matt Groening saw this picture and was inspired to draw the character? Maybe Matt Groening even took the picture!