But again it’s not uncommon to believe your opponent is chasing a card especially in this case - straight and flush draw and the straight is below your top card

But again it’s not uncommon to believe your opponent is chasing a card especially in this case - straight and flush draw and the straight is below your top card. If it’s a straight draw they have, you know you have them beat. And going all in pre-river on your draws is the main tactic you’d expect to see.