Yeah, don't mess with that. A little pain isn't worth the problems you're gonna have if you don't get the shots.
Like without the shots you could get the trots, the flamin' swampies, clap, syph, snoo, yaws, rickets, hemorrhoids, pimples on yer backside, and...well, I knew one guy who had that deficiency and ended up with a problem even Viagra couldn't fix. Poor guy ended up down in the Delta singing the Blues outside a cheap juke joint, unable to afford even a cheap joint.