Yet they are self - centered, dishonest and undependable, and at times they engage in irresponsible behavior for no apparent reason other than the sheer fun of it. (scientificamerican.com)
I don't compete though, doing it just for the sheer fun of it. (thebigmansworld.com)
Ready to conquer for the sheer fun of it, I might add! (amidprivilege.com)