exotic technology activities

I do exotic technology experiments throughout the universe 

if aliens notice those exotic technology activities 

and tries to communicate and/or interact 

then I will probably answer that communication 

but if I don't answer that communication 

then it's probably because I determine that contact could distress aliens 

and/or that contact could cause a chain of events 

that decreases the survivability of various alien civilizations 

and/or that contact could cause a chain of events 

that could cause aliens 

to cause themselves or other aliens unnecessary suffering