Aslan certainly hadn't meant to offend his little brother, he'd simply found the gesture a sweet and thoughtful one that he was sure their mother would be able to appreciate in her current state. Judging from the frown however Fate hadn't quite seen it that way and the elder boy would be quick to try rectify the situation. "Mum will like it." He explained.
Now Fate would fall happily to abiding his request, explaining that he had been close and then demonstrating his technique. Once more it failed, paw meeting the water with a splash and no fish scooped out with it. As the boy's bright eyes glanced back to him, Aslan would move closer, sitting beside his brother to show him a different tactic.
"Start with your paw as close to the water as you can get it, keep it still until you're ready though." Aslan explained, placing his own paw into position to demonstrate. "You seem to be watching the fish carefully so that's good, but you've got too far to reach to catch it. The smaller and quicker the movement you make, the more chance you have of catching it. Try again."