Final answer:
The question about an 'exciting surprise' following a Khmer Rouge attack in 1979 seems to be inaccurately framed. The provided materials only recount the harrowing events of the Khmer Rouge regime and its associated atrocities without mention of a positive surprise.
Step-by-step explanation:
After the Khmer Rouge attack on the village in February 1979, there seems to be confusion in the question, as it refers to a 'surprise' following an attack, which typically would not be 'exciting' in a positive sense during such a tragic historical context. The text provided discusses the atrocities committed by the Khmer Rouge, including the mass killings and the Mai Lai Massacre where soldiers distributed candy to children before committing acts of violence. Given this context, it appears that the question may be missing information or is inaccurately framed. To accurately address the student's question, it would be necessary to have the correct details or the passage from which the question is derived. The details provided in the reference material do not include an 'exciting surprise' following an attack by the Khmer Rouge in 1979, but rather recount the horrific events of that time period.