Mysterious Puddle Near Tank

[Gilbert]

for the pass 2 weeks i have come home and noticing a small puddle of water on the floor in my room, always in the same spot. the first thing that come to my mind is who the F**K has been sticking their hands in my aquarium. But then today i noticed that my cleaner wrasse was the one making the mess. he goes to one of the front corners of my tank and does a little flip which splashes water out. the splash is equivalent to someone flicking water out of their tank, so after a while the mess adds up and i come home to about half a cup of water on my floor.
how do i stop him from doing this???
why is he doing it???
is it some kind of mating dance???
can't get a good pic of the fish so i had to barrow this one

ALSO i have heard that this fish is hard to keep alive, why???
i've had mine for about 2yrs. with no problems until a couple of weeks ago. felipe from finaddict had said it was a bad fish to buy and that in about 3 mouths he would be dead. any info on this fish would be nice,

[aquasport24]

I had mine for a year now, with no problem.

[bimmerzs]

I have had issues with these carpet diving within a week of going in the tank, got one now's that's been in over two month's . :0 Neon gobies are generally considered a better choice if you like the cleaning aspect of having these.

Cheers,