You want "dubious"?!
You should see the hundreds of strange characters already encoded in the
CJK *Unified* Ideographs blocks, as recently documented in great detail
by Ken Lunde:
https://www.unicode.org/L2/L2020/20059-unihan-kstrange-update.pdf
Compared to many of those, a hieroglyph of a man (or woman) holding a
laptop is positively orthodox!
--Ken
On 2/13/2020 11:47 AM, Phake Nick via Unicode wrote:
Those characters could also be put into another block for the same
script similar to how dubious characters in CJK are included by
placing them into "CJK Compatibility Ideographs" for round trip
compatibility with source encoding.
