In Broad Street, Oxford, a group of students passed by, wearing examination uniform covered in messy gunge.

About three weeks ago, a similar group, in High Street, edged me off the pavement near Carfax.

One of the large balloons that they carried, blowing in the wind, dislodged my spectacles. Did the students care? Did they apologise? They did not even notice.

Continuing down High Street, I saw that in Merton Street, alongside the Examination Schools, cars could hardly get by because students were milling around all over the carriageway.

Subsequently, I came across a copy of Cherwell, the student newspaper, showing a picture of students with their clothes covered in mess, but worse, Merton Street was also covered in mess.

The flippant nature of the caption referring to 'impish revellers' made me wonder if the picture was a hoax.

Later, however, another publication, Oxford Student, took up the subject of post-examination behaviour.

It included a statement that Oxford City Council was forced to spend about £20,000 cleaning up Merton Street last summer.

Oxford University and colleges, who are responsible for inviting these students to come here, should take responsibility and pay the costs of the students' action. The public should not suffer, nor pay for this antisocial student behaviour.

Is it not illegal to litter the street? So have the students been fined? P Watson, Oxford