0 said when you think what has been suggested is certainly not, or certainly is, the correct and expected thing:
"I bought her some flowers to say thank you." "I should think so too."
"I don't like to drink more than one bottle of wine in an evening." "I should think not."
NOVÉ SLOVÁ
European
May 10, 2021
SLOVO DŇA
Shimmer
I should think not/so (too)!