Something like this for me as well - when we were first getting my son into board gaming we had a copy of the newest Space Hulk and he spilled orange juice on the table all over several map tiles and other bits. It was a pretty rough afternoon for everyone, so we have a firm “no drinks allowed on the table itself” rule, and we only snack on ‘safe’ foods like Twizzlers or something that doesn’t really leave a residue.