Nice to hear your comments and thanks for sharing.
The tongue get stuck quite often. NEVER try to dislodge it with your fingers. Very likely that you will snap it if you do so. The tongue is a small "L" shape Zisha and carefully inserted in. You can imagine the level of craftsmanship in this type of pot.
A good way to dislodge the tongue is to submerge the cover into water, whilst holding the dragon head. Shake it very gentle left and right and the tongue should dislodged.
Another method is to tap the dragon head gently, with the tip of chopstick, whilst holding the dragon head pointing towards the ground. Both method works quite well.
Hmmm hope that these tips save some good tongue