“And no one better not touch my kugel once it is in my plate (kinyan chotzer ha’mishtameres)!”
Absolutely agree with that (and am not even looking at your kugel! – though am not sure if a plate has a Chatzor status especially in a shul!) However, a major diff from a siddur or place; kugel was meant to be taken and to eat i.e. as yours ro keep by the giver, whereas, a siddur is meant ro be as an השתמשות only not ro keep. Hence, there won’t be any kinyanim involved.
Somehow it remindw be…There is an old שאלה if someone is a guest ane receives food at the table, if he can he מקדש an אשה with the portion..