"such virtue hath my pen"

Sometimes a pen is just a writing implement and not a verb meaning "to shut an animal or a person in a small space".

On the other hand, I would give extra points for creativity to someone who latched on to the double meaning and argued that by writing about someone with your pen you actually shut this person into a pen, because the words are limited to what you want to express about this person.

Am I a bad teacher for not anticipating this vocabulary problem?

What do you think?

I'm in a bit of a conflict regarding authentic English and using Denglish terms that are clearly translated from the German and turn up in all sorts of material for German students and teachers.

Here's the problem:

I've got to prepare my advanced students for their final exams in 2009. Discussing and analysing poetry is part of that. For some reason, there is quite a difference in the terms used in German and in English to do so. In German, the speaker of the poem is the lyrisches Ich. Rhymes can be Kreuzreime, umarmende Reime and Paarreime.

So, these terms get translated into English. I've got various books at home aimed at German students to help them prepare for their final exams that contain the phrase lyrical I - sometimes with a hyphen as lyrical-I. *shudders*

Here is a list describing rhyme scheme taken from one of those books:

rhyme pairs (aa); cross rhyme (abab); embracing rhyme (abba); tail rhyme (aabccb)

I've found both crossed rhyme and tail rhyme elsewhere, but with very different definitions.

I'm pretty sure that the above terms wouldn't be taught this way in a real English language school setting, either in the States, the UK, the Antipodes or elsewhere. On the one hand, I do want to use authentic English, on the other hand it looks like some of these words are very prevalent in German English teacher jargon and will thus be expected of the students. Also, I don't want to punish them for mistakes that others have made - so I'm currently offering alternatives to the words they use, but don't count them as a mistake.

Does that make sense? Am I right that these terms are bogus?

edited because awarding penalties doesn't mean what I wanted it to say