Youtuber RoltonB (with no mention of how the frog *cough* got there in the first place) sez:
Never seen nothing like this before. The video was shot entirely fortuitously. The frog is OK. There is no nails, no glue, animal abuse, etc. Later, she jumped off the bench and galloped away to the water.
He/she seems happy enough though. Contemplative. Perhaps even fixin’ to go a-courtin’.

Existential frog! :)
Galloped though, galloped!!
That’s “toadally” awesome.
Galloping frog…now that’s a video I’d like to see…..or maybe he was just frog marched off the bench
This guy seems convinced that the frog had his legs broken and was nailed in place… or something.
It’s Kermit’s nephew Robin.
Aw, Robin.
He’s just there chilling his beans! Hahahaha
He’s so dead and stuck there.