Honestly I'm not sure. Presumably because the player found it amusing, which is why she did a lot of things. Like playing a pink axolotl shifter druid that makes squeak toy noises when hit and refers to the swarm of velociraptors they summon as "my kids" (the rest of us called them "the dinosaur machine gun" because of all the attack rolls at once as they devoured enemies from the ankles up).