I have used this for years, still good as new, it does both straight and serrated blades. It does take practice to get it right, though.
https://s.lazada.co.th/s.y7o1E
Life is very cheap here. The attitude seems to be "Never mind, let's have a funeral party, we can always breed another one!"
Compare with penalties:- 1000baht fine or 5 years in jail! As if there was any balance in the alternative punishment.
I suggest you buy one even though it's too short, and have the adjustable bits made longer, lot's of local places can do quickly and cheaply, if properly supervised. PM me if you need help.
I would like to know, what happens to the liberated illegal captive creatures? Released into the wild? Returned to country of origin? Imprisoned in a zoo? Killed and cremated?
Not so. It does not add Oxygen, it removes Nitrogen, thereby producing a higher O² concentration. The N² is vented back to the environment. The only downside is the reliance on electrical power.