cocktail during a school prank which went badly wrong.

The three Warwick Secondary pupils behind the mischievous trick were suspended.

Their parents were also summoned to the school over the prank -- dubbed "silly and unfortunate'' by the head.

And The Royal Gazette understands in another incident, a Warwick Secondary teacher suffered a head wound from a stone-throwing pupil.

The incidents come amid increasing concern over pupil discipline in Bermuda.

Warwick Secondary principal Dr. Norma Hendrickson admitted misbehaviour was a constant problem.

Last week The Royal Gazette revealed the Island's chief education officer was probing reports of unruly behaviour at East End School.

Mr. Dean Furbert's investigation was launched after teachers reported spending most of their classroom time "baby sitting''.

A teacher, who declined to be named, later claimed misbehaviour stemmed from little power among teachers to discipline.

The 15-year-old Warwick Secondary student who drunk the cocktail soon complained of a severe stomach upset, and was treated at the emergency department at King Edward VII Memorial Hospital, but later discharged.

The three main culprits -- two of them second year students, and younger than their victim -- were suspended for two days.

Yesterday Dr. Hendrickson said the boys' parents were sent for after last week's incident.

"It was really just a silly and unfortunate prank, and rather distasteful. I suppose you would call it skylarking,'' she told The Royal Gazette .

"The children played a trick on this older boy, who began to feel a bit queasy.

"There was clearly something wrong with him and it was thought best to send him to emergency. He's fine now, however.'' She added: "We have spoken to the parents of the three boys involved, and they are also now back at school.'' On the stone-throwing incident, Dr. Hendrickson said she was unable to cast much light.

"A stone was apparently thrown through a window by a person or persons unknown.

"No one actually saw it happen, or even knows who is responsible. I, myself, have no direct knowledge of it.'' She added: "The school does not intend taking any action over the incident.'' Dr. Hendrickson, a school principal for 13 years, has been at Warwick Secondary since 1986.

The school, off Middle Road, currently has 380 youngsters on roll, with a pupil teacher ratio of 15 to one.

Dr. Hendrickson admitted pupil discipline nowadays was a constant problem for her staff.

"It reflects a general malaise in society. Children are products of society.

"It's really a global problem, as seen by the soccer hooliganism in England.

"It may seem like philosophising, but with the recession and lay-offs everybody is a bit uptight these days, and children are part of that.'' Dr. Hendrickson said her staff constantly emphasised to pupils the importance of resolving conflicts through consultation -- not violence.

She added the school was hot on discipline, and generally parents were cooperative.