Two people performing jamaat

Q: If the time for Fajr salaah in the masjid /musallah is up, and there is only the muazzin and imam present, but someone arrives just then but still needs to make wudhu and read sunnats. Should the muazzin stand behind the imam because they know there is another musallee that will join the salaah later, or should he stand on the right of the imam and when the musallee comes to join then move back to the saff?

Not entertaining drug addicts

Q: If a drug addict live with us and he steals our things and just make life so difficult for us, is it wrong of me to not give that person food? We used to give before, for years we just looked pass it but now I stopped and I feel so bad about it. Will Allah be displeased with me if I don't want to give anymore? If drug addicts ask for food is it also wrong to refuse them after we know that they spend their money on drugs and depend on the community to help them with food. I love to give and used to give anyone that came at my door but the drug addicts are persistent.