High Intelligence, Low Wisdom
We're managing to repel the bandits attacking the fort so far, preventing a breach from those trying to climb over the walls. As any bandits climbing their ladders are struck down, their ladders are pushed back off the wall to inconvenience them.
Everyone gets stuck in, including our wizard. Pasha sees a ladder against the fort. 'Is this guy holding the ladder?'
'Yep.'
'Okay. Hmm.' There is a long pause as our wizard considers the situation. 'I'm wondering if I can use my Mage Hand spell to push the ladder away from the wall.'
'You're standing right next to it. You could use your actual hand.'
'Oh yeah. I'll do that.' Maybe he can say some fancy words as he pushes, to make it seem more magical.