Corrected entry: When Greg's father finds out that Greg lied about getting a job, one of the workers state that they don't employ minors. However they employed Holly as a tennis coach. She happens to be a "minor".
Correction: That is different. What if Holly volunteers to teach kids tennis, and doesn't get paid? Then she's not really 'employed', she simply uses the county club's tennis courts.
Corrected entry: When Greg goes under the water the legs of the people change.
Correction: This mistake is way too vague. The pool is completely packed, so it is simply impossible to spot anything different about the people's legs.
Correction: Even so, Heather Hills is a minor, and she is employed as a lifeguard.