I keep reading this topic as "Toady I Plaster the Living Room", what's wrong with me! Also your dragon is dead Haspen!
It's Vampire Dragon ;P
'Toady, I got plastered in the living room. Help pl0x'
Nikov, uhhh. It might work, but if it's surrounded by wet ground, well... you're gonna spend some time on it. And you will have to keep the eye on the fire. Pour some gasoline to fasten the fires

Is it buried in soil btw? You could dig around and then just take the post from there. But of course I believe we speak about concrete surrounding the post, eh?