As for making fun of anyone...if you can't make fun with a player that dribbled a ball back to the mound...and you cannot take the jokes if you were the guy swinging...its time to give up playing...
Whoever that was that did it...he would have been wide open for bench jockey fun...
"Man...you don't look fast enough to be a slap and run hitter"
" I know willie McGee won two batting titles doing that but..he played on turf, and was real fast".
"Well there goes the theory that lefties always have pretty swings"
"Did you really need to take all that time to get in to box to do that"
"Well I was thinking about hammering you on that swing but at least you didn't wipe out the batters box...then again...that probably would have been less embarrassing"
"Was that really with a senior bat? I didn't think senior bats could hit a ball that slow?"
In the end...if your not playing softball for fun/humor...your playing the wrong game... or have your priorities way out of wack.