Grape Juice can be used as a Velociraptor Repellant!

It is widely known in the field of agronomy (e.g., Avery, 2002) that birds are repulsed by methyl anthranilate, a natural compound found in many of the less sweet fruit varieties. Methyl anthranilate has been used (with some success) as a bird repellent on crops. Now, we know (e.g., Gauthier et al., 1988) that modern birds are descended from dinosaurian ancestors, of which one close relative was Velociraptor (ibid.). Much as lab rats respond to drugs like humans, it is entirely possible that Velociraptor will respond to methyl anthranilate as does the common crow or European starling.

Thus, I recommend you carry around a loaded SuperSoaker filled with Concord grape juice. Fresh-squeezed would be ideal, but from concentrate should be effective as well. This will not only have the theoretical asset of protecting you from Velociraptor, it will have the pragmatic asset of protecting you from thirst.