my vote is that there is a negligable amout of a halucanegenic compound used as a mold release for all of Mongoos' fighter sprues. nomally it's harmless, but like mercury it never metabolises and just builds up. even so you'd have to be exposed to thousands of t-bolts worth in order for there to be any noticable effects...
that or... you know, he's on vacation or some such. but that second idea is just plain crazy.