If the
ba'al koreh feels hostility towards a congregant, that person should not be called to the
aliyos of the
tochacha of
parshios Bechukosai or
Ki Savo. There is a concern that the
ba'al koreh will intend for the curses to befall his enemy, putting him in
sakana. If the enemy suspects that he will be called to the Torah, he should leave the shul at the conclusion of the previous
aliyah and reenter only after someone else has been called to the Torah. If the enemy was called for the
aliyah, some
poskim advise him not go up but most
poskim hold that he should accept the
aliyah.
The popular custom today is for the
ba'al koreh to take this
aliyah for himself.
(
סעיף כ וס"ק נט ו־ס; ביאורים ומוספים דרשו, 70)