Sabotaging Thought: It's okay to eat this [unplanned food] because I'm stressed.
Response: It's not okay to eat this just because I'm stressed. Eating won't solve the problem of what made me stressed in the first place. At most, it will temporarily distract me from it, but then it will just leave me with two problems: the initial one plus now the problem of getting off track and feeling badly about my eating. It's not worth it.