May one hang a bag or basket containing bread on a hook in a pantry, or on the wall, such that the bread is suspended in the air?
Chacham Benzion Abba Shaul (Jerusalem, 1924-1998) in Or L’tzion, Helek 2, addressed this question and cited the Gemara's comment in Masechet Pesachim (111b), "If something is suspended in one's home, it brings poverty." Rashi explains this as referring to suspending a bag or basket of bread in one's home. Certainly, then, one would want to avoid hanging bread on a hook.
The question was asked as to whether teachers may hang their young students' knapsacks on hooks on the wall in school, given that the knapsacks generally contain the children's lunches. If a teacher hangs the knapsacks, does he expose himself to the risk mentioned in the Gemara?
Chacham Ben Tzion noted that Rashi speaks specifically of one who "hangs his bread," suggesting that the Gemara refers only to hanging one's own bread on a hook. The threat of poverty does not present itself to somebody who hangs a bag of somebody else's bread.
Thus, one must ensure not to hang a bag or basket containing his own bread on a hook on the wall or in a closet, but he need not be concerned of hanging a bag with somebody else's bread.
