If you have 11 and a beginner/drunk/drugged/idiotic (or all of the above) player on your immediate right pulls “your” 10 on his 19 resulting in you missing out on your blackjack and if the dealer doesn’t get blackjack but beats your hand, then yes, that other player has caused you to lose that particular hand. Have seen that and similar occurrences often, always resulting in much angst and disharmony at the table, especially when the affected losing player has chipped-up to, or near, the table bet limit.
So please, spare me your criticisms of my post about preferring to play blackjack online, at home. Thanks.