I have noticed that when I kill some of the wandering creatures, I don't receive the full experience point value. I am still early in the game and have been primarily killing orcs and bandits (levels 1-5). Rather than receiving 20 XPs for killing a level 4 creature or 26 XPs for killing a level 5 creature, occasionally I will only receive 3 or 4 XPs. I noticed this in the small yellow XP value that appears on screen when you kill a creature. I confirmed this by double-checking my actual XPs in the character screen after each kill. Is this a glitch, or do some of the level 4 and 5 creatures really have single-digit XPs?