I just got this as a reply to my email:
"First of all, we would like to offer an unconditional apology for this t-shirt. CharGrilled does not endorse rape or sexual violence in any form.
Unfortunately we have recently contracted a number of new designers who contribute t-shirts to our website. Needless to say, the designer responsible for this t-shirt will not be used by us again. Furthermore, we intend to have a full review of our t-shirts to make sure this kind of message has not been included in other designs. The offending t-shirt has of course been removed. We will be introducing more stringent controls on all our contracted designers and have contacted everyone who contributes t-shirts to our site to inform them that this kind of message is unacceptable.
We would like to thank you (and indeed a number of other rightly concerned people) very much for bringing this to our attention.
I hope that you will accept our sincere apologies over this matter.
CharGrilled"