Gatomon had a power of Hypnotism. If you asked her, it was rarely used.

"Ah, good, you're back..." Gatomon said as Kari entered the room

"Yes mistress, I have returned with your catnip..."

The human had a glazed look in her eyes, and a large bag of catnip.

"This should keep me going for a week!" The catnip addicted Digimon proclaimed.

If you checked bank statements and paid attention in the Kamiya household, her earlier statement of "rarely used" would be proven false. But then again, she'd just hypnotise you into forgetting what you saw. Oh, and buying some catnip.