I can just imagine how this would've gone if it had continued a bit longer:
Dick: 'You'd be sued by every irate housewife whose window ever got broken during a battle!'
Bruce: 'Which I could afford, seeing as how I'm a bazillionaire. On the other hand, I could give free educational tours of the Batcave to groups of schoolchildren!'
Dick: 'One of which might be a disguised dwarf assassin ready to take you out...'
Alfred: 'Not to mention, I might add, the absolute PIGSTY that the cave would be afterwards, regardless...'
Bruce: 'I suppose that's true enough. But just think! No more awkward excuses for dashing off and changing clothes during the middle of a date! I could go on dates in costume, and when I rushed away to fight crime, they'd applaud!'
Dick: 'That WOULD be nice, if it weren't for the fact that underworld snipers would likely have taken you out long before you reached the point of running away.'
Bruce: 'Come ON, I'm Batman! I eat crooks like that for breakfast! I'd take them out without breaking a sweat and impress my date with my crimefighting skills!'
Dick: 'Always assuming you could GET a date who was willing to risk the possibility of being cut down by a stray bullet. That's kind of a turn-off for most women.'
Bruce: 'But... but... I could market the Batarang as the next big children's toy! Imagine, walking through the park and seeing people tossing around Batarangs instead of frisbees! Wouldn't that be heartwarming?'
Dick: 'You're really getting into this, aren't you?'
Bruce: 'Just let me have my fantasies for a minute, OK?'