At first, he would likely feel a sharp pain and panic. After that, depending on his personality, if he's a calm and rational person, he would start to analyze the situation. He might try to recall any knowledge he has about alien life forms or parasites. He could also try to communicate with his surroundings, if possible, to get help. He would be constantly worried about what the leech is doing to his body, whether it's injecting something harmful or just draining his life force.
The male adult may first go into a state of shock. But then, realizing the danger, he would probably start looking for any available resources around him to remove the alien leech. Maybe he'd use a sharp object if he can reach one to try and pry it off, all while being very cautious not to make the situation worse.
One possible plot could be that a male adult is exploring an uncharted forest. Suddenly, an alien leech attaches itself to him. The leech starts to drain his energy, making him weak and disoriented. He has to find a way to remove the leech before it completely drains him.
Some animals would hide. Mice would scurry into their holes and stay there until they think it's safe.
An alien leech is a fictional and often dangerous or unhygienic concept in most science fiction. It would be extremely difficult and unwise to keep it as a pet in real life. There are many ethical, safety, and practical reasons against it.
Some students might be very scared at first. After all, an alien is not something they see every day. But as time goes by, they may become curious and start to approach the teacher to learn more about the alien's culture.
The human would probably be extremely confused at first. Suddenly having a different body, with four legs and a tail, and seeing the world from a much lower perspective would be disorienting.
A fictional alien leech might have the ability to change its shape or color for camouflage. This would help it in hunting or hiding from predators in its alien environment.
There was a male adult, Tom, who worked as a forest ranger. One day, while he was patrolling the forest, he noticed an unusual object hidden among the trees. As he got closer, he realized it was an alien. The alien was injured. Tom, being a kind - hearted man, decided to help. He used his first - aid knowledge to tend to the alien's wounds. The alien was very grateful. Although they couldn't communicate through words, they seemed to understand each other's intentions. After a few days, the alien fully recovered and flew back to its planet, and Tom often thought about that strange encounter.
In the long run, Percy might grow from the experience. He could become more cautious in his relationships and less trusting. Or, if there's a chance for redemption in the fanfic, he might be open to forgiving Annabeth if she shows true remorse and has a valid reason for her actions. But initially, it would be a very difficult and emotional time for him.
Percy would likely be both angry and calculating. He'd be angry because he's been kidnapped, but he'd also start thinking about how he can use his powers and skills to get out of the situation. He might try to reason with Khione if he thinks it could buy him some time to plan an escape. He'd also be looking for any weaknesses in Khione's defenses or in her personality that he could exploit.
At first, Percy would likely be angry. He has faced so many challenges with the belief that his father was on his side. The betrayal would make him feel like all his efforts were in vain. He could lash out, perhaps even using his powers in a more reckless way. But as time goes on, he might start to question if there's a deeper reason behind Poseidon's actions and try to find out the truth, especially if he still has friends who believe in him and encourage him to look deeper.